Question

Show that 36, 49, 6, 7 are not in proportion.

Answer 1

We have:
Product of the extremes = 36 $\times$ 7 = 252
Product of the means = 49 $\times$ 6 = 294
Product of the extremes $\ne$ Product of the means

Hence, 36, 49, 6 and 7 are not in proportion.