Home / 1,350.20-2,025.30-484.58

Finding the Fourth Proportional to 1,350.20, 2,025.30 and 484.58

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Solution

The fourth proportional to 1,350.20, 2,025.30 and 484.58 is: 726.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,350.20 : 2,025.30 = 484.58 : x
  2. Step 2: Convert to fraction form
    1,350.20/2,025.30 = 484.58/x
  3. Step 3: Cross multiply
    1,350.20x = 2,025.30 × 484.58
  4. Step 4: Simplify right side
    1,350.20x = 981,419.87
  5. Step 5: Solve for x
    x = 981,419.87/1,350.20
  6. Step 6: Final answer
    x = 726.87

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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.