Ratios, Rates and Proportions — Digital SAT SAT Math revision notes
A 3-page visual revision sheet for Ratios, Rates and Proportions, written for Digital SAT SAT Math. Formulas, diagrams and the traps that cost marks, laid out to be read the night before rather than the term before. Free, and it opens inside CapCompass.
What this Ratios, Rates and Proportions sheet covers
- What makes a relationship proportional
- Three ways to write the same thing
- the equation form, k constant
- the constant read off any one pair
- the proportion form, then cross multiply
- Worked: a constant rate
- The three shapes this topic comes in
- Rate
- Proportion
- Scale
- Sharing
- Part to part against part to whole
- Worked: splitting a total in a ratio
- Similar figures share one scale factor
- Worked: scale factor
- Which setup does the question want
- Pacing and the calculator
- Symbols and terms
- Traps that cost points
- Tricks that save time
How CapCompass uses this sheet
These notes are not a standalone PDF. CapCompass plans SAT Math chapter by chapter against your real exam dates and free hours, and when the plan reaches Ratios, Rates and Proportions the sheet opens inside the study block itself — at the page covering the sub-topic that block is on, with the timer still running. Revision arrives at the moment the plan says revise, instead of having to be gone looking for.
More SAT Math revision notes
- Area and Volume
- Circles
- Equivalent Expressions and Polynomials
- Evaluating Statistical Claims
- Inference and Margin of Error
- Linear Equations
- Linear Functions
- Linear Inequalities
- Lines, Angles, Triangles
- Nonlinear Equations in One Variable
- Nonlinear Functions
- Nonlinear Systems
- One-variable Data
- Percentages
- Probability and Conditional Probability
- Systems of Equations
- Triangles and Trigonometry
- Two-variable Data
- Units, Rates and Conversions