Home / 1,410.16-2,114.64-436

Finding the Fourth Proportional to 1,410.16, 2,114.64 and 436

Calculator

Solution

The fourth proportional to 1,410.16, 2,114.64 and 436 is: 653.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,410.16 : 2,114.64 = 436 : x
  2. Step 2: Convert to fraction form
    1,410.16/2,114.64 = 436/x
  3. Step 3: Cross multiply
    1,410.16x = 2,114.64 × 436
  4. Step 4: Simplify right side
    1,410.16x = 921,983.04
  5. Step 5: Solve for x
    x = 921,983.04/1,410.16
  6. Step 6: Final answer
    x = 653.81

Related Problems

Find fourth proportional to 705.08, 1,057.32 and 218
Half scale
Find fourth proportional to 2,820.32, 4,229.28 and 872
Double scale
Find fourth proportional to 1,411.16, 2,116.14 and 437
Similar ratio
Find fourth proportional to 2,115.24, 3,171.96 and 654
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.