Finding the Fourth Proportional to 1,183.68, 1,775.16 and 414
Calculator
Solution
The fourth proportional to 1,183.68, 1,775.16 and 414 is: 620.87
Step by Step Solution
- Step 1: Write the proportion equation
1,183.68 : 1,775.16 = 414 : x - Step 2: Convert to fraction form
1,183.68/1,775.16 = 414/x - Step 3: Cross multiply
1,183.68x = 1,775.16 × 414 - Step 4: Simplify right side
1,183.68x = 734,916.24 - Step 5: Solve for x
x = 734,916.24/1,183.68 - Step 6: Final answer
x = 620.87
Related Problems
Find fourth proportional to 591.84, 887.58 and 207
Half scale
Find fourth proportional to 2,367.36, 3,550.32 and 828
Double scale
Find fourth proportional to 1,184.68, 1,776.66 and 415
Similar ratio
Find fourth proportional to 1,775.52, 2,662.74 and 621
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.