What type of number will the product of π and 3/4 be?

The product of \( \pi \) (which is an irrational number) and \( \frac{3}{4} \) (a rational number) will also be an irrational number.

When you multiply a non-zero rational number by an irrational number, the result is always irrational. So, the product \( \pi \times \frac{3}{4} \) will be irrational.