Written by the Fiveable Content Team • Last updated September 2025
Verified for the 2026 exam
Verified for the 2026 exam•Written by the Fiveable Content Team • Last updated September 2025
Definition
Proportional reasoning refers to the ability to understand and solve problems involving proportional relationships, where one quantity changes in direct proportion to another quantity.
Related terms
Direct variation: A type of proportional relationship where one variable is directly proportional to another.
Constant of proportionality: The value that relates two variables in a proportional relationship.
Inverse variation: A type of proportional relationship where one variable is inversely proportional to another.