Home / 1,429.92-2,145.32-737.08

Finding the Fourth Proportional to 1,429.92, 2,145.32 and 737.08

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Solution

The fourth proportional to 1,429.92, 2,145.32 and 737.08 is: 1,105.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,429.92 : 2,145.32 = 737.08 : x
  2. Step 2: Convert to fraction form
    1,429.92/2,145.32 = 737.08/x
  3. Step 3: Cross multiply
    1,429.92x = 2,145.32 × 737.08
  4. Step 4: Simplify right side
    1,429.92x = 1,581,272.47
  5. Step 5: Solve for x
    x = 1,581,272.47/1,429.92
  6. Step 6: Final answer
    x = 1,105.85

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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.