Home / 1,001.24-1,503.30-742.04

Finding the Fourth Proportional to 1,001.24, 1,503.30 and 742.04

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Solution

The fourth proportional to 1,001.24, 1,503.30 and 742.04 is: 1,114.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,001.24 : 1,503.30 = 742.04 : x
  2. Step 2: Convert to fraction form
    1,001.24/1,503.30 = 742.04/x
  3. Step 3: Cross multiply
    1,001.24x = 1,503.30 × 742.04
  4. Step 4: Simplify right side
    1,001.24x = 1,115,508.73
  5. Step 5: Solve for x
    x = 1,115,508.73/1,001.24
  6. Step 6: Final answer
    x = 1,114.13

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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.