Question

If the following quantities are in proportion. Find the value of x
a. 7.21 and k step by step​

Answer 1

Answer:

We will learn how to solve word problems using proportion. If four numbers p, q, r and s are in proportion, then p and s are called the extreme terms and q and r are called the middle terms. Then, the product of extreme terms (i.e. p × s) is equal to the product of middle terms (i.e. r × s).

Therefore, p : q : : r : s ⇒ ps = qr