Final answer:
The ratio of Mr. Sirko's height to Dylan's is 4:3. If Mr. Sirko is 184 cm tall, we calculate Dylan's height to be 138 cm tall by setting up a proportional equation.
Step-by-step explanation:
Mr. Sirko is 4/3 times as tall as his grandson Dylan.
Ratio of Heights
(a) The ratio of Mr. Sirko's height to Dylan's height is 4:3.
Finding Dylan's Height
(b) To find out how tall Dylan is, you can set up the equation: Mr. Sirko's height = (4/3) × Dylan's height. Since we know Mr. Sirko is 184 cm tall, if we let Dylan's height be represented as x, then by substituting we get: 184 = (4/3)x. Solving for x, Dylan's height is: x = 184 × (3/4), x = 138 cm. Therefore, Dylan is 138 cm tall.