Finding the Fourth Proportional to 755.77, 1,132.09 and 560.99
Calculator
Solution
The fourth proportional to 755.77, 1,132.09 and 560.99 is: 840.32
Step by Step Solution
- Step 1: Write the proportion equation
755.77 : 1,132.09 = 560.99 : x - Step 2: Convert to fraction form
755.77/1,132.09 = 560.99/x - Step 3: Cross multiply
755.77x = 1,132.09 × 560.99 - Step 4: Simplify right side
755.77x = 635,084.11 - Step 5: Solve for x
x = 635,084.11/755.77 - Step 6: Final answer
x = 840.32
Related Problems
Find fourth proportional to 377.88, 566.04 and 280.49
Half scale
Find fourth proportional to 1,511.54, 2,264.18 and 1,121.97
Double scale
Find fourth proportional to 756.77, 1,133.59 and 561.99
Similar ratio
Find fourth proportional to 1,133.65, 1,698.13 and 841.48
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.