Finding the Fourth Proportional to 1,035.24, 1,552 and 487.12
Calculator
Solution
The fourth proportional to 1,035.24, 1,552 and 487.12 is: 730.28
Step by Step Solution
- Step 1: Write the proportion equation
1,035.24 : 1,552 = 487.12 : x - Step 2: Convert to fraction form
1,035.24/1,552 = 487.12/x - Step 3: Cross multiply
1,035.24x = 1,552 × 487.12 - Step 4: Simplify right side
1,035.24x = 756,010.24 - Step 5: Solve for x
x = 756,010.24/1,035.24 - Step 6: Final answer
x = 730.28
Related Problems
Find fourth proportional to 517.62, 776 and 243.56
Half scale
Find fourth proportional to 2,070.48, 3,104 and 974.24
Double scale
Find fourth proportional to 1,036.24, 1,553.50 and 488.12
Similar ratio
Find fourth proportional to 1,552.86, 2,328 and 730.68
1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.