To find the volume of a right rectangular prism, you use the formula:
\[ \text{Volume} = \text{Length} \times \text{Width} \times \text{Height} \]
For your dimensions:
- Length = \( \frac{1}{4} \)
- Width = \( \frac{3}{4} \)
- Height = \( 1 \frac{3}{4} = \frac{7}{4} \) (since \( 1 \frac{3}{4} = \frac{4}{4} + \frac{3}{4} = \frac{7}{4} \))
Now substituting these values into the volume formula:
\[ \text{Volume} = \frac{1}{4} \times \frac{3}{4} \times \frac{7}{4} \]
The corresponding choice from the options you provided is:
1/4 × 3/4 × 7/4