To find the constant of proportionality from the table, we look for the ratio of miles walked to hours. The constant of proportionality can be found by dividing miles by hours for any entry in the table.
Using the data in the table:
- For \( (1/4, 1) \): \( \frac{1}{1/4} = 4 \)
- For \( (1/2, 2) \): \( \frac{2}{1/2} = 4 \)
- For \( (3/4, 3) \): \( \frac{3}{3/4} = 4 \)
- For \( (1, 4) \): \( \frac{4}{1} = 4 \)
In each case, the constant of proportionality is \( 4 \), indicating that Julian walks \( 4 \) miles for every hour he spends walking.
Looking at the response options provided, the ratio that matches the constant of proportionality appears as:
(4, 1)
So the correct answer is:
(4, 1).