Question

Check whether $0.8,4,3,15$ are proportional or not:

Answer 1

Explanation:

Four quantities are said to be in proportion when,

$\text{Product of extremes terms = Product of means terms}$,

The first and last terms are called extremes terms, while the second and third terms are called middle or means terms.

Product of extremes terms $=0.8\times 15=12$

Product of means terms $=4\times 3=12$

Therefore, $\text{Product of extremes terms = Product of means terms}$

Hence, $0.8,4,3,15$ are proportional.