Maryland Comprehensive Assessment Program (MCAP) Terms Practice Test

Which statement describes a proportion?

An unchanging value equal to one part divided by the whole. The comparison of two quantities using division. A relationship where two ratios are equal. The relationship between speed, distance, and time.

Correct Answer:

A relationship where two ratios are equal.

Explanation:

A proportion is a relationship in which two ratios are equal. The statement that two ratios are equal describes a proportion. For example, 3/4 = 6/8 is a proportion because both sides express the same value. The other descriptions describe different ideas: a single ratio or fraction, a ratio in general without asserting equality to another ratio, or a rate relationship like speed = distance/time, which is not about two ratios being equal. Recognizing that a proportion specifically means two ratios that are equal helps you spot these problems quickly.

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