Home / 1,487.48-2,229.96-938.45

Finding the Fourth Proportional to 1,487.48, 2,229.96 and 938.45

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Solution

The fourth proportional to 1,487.48, 2,229.96 and 938.45 is: 1,406.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,487.48 : 2,229.96 = 938.45 : x
  2. Step 2: Convert to fraction form
    1,487.48/2,229.96 = 938.45/x
  3. Step 3: Cross multiply
    1,487.48x = 2,229.96 × 938.45
  4. Step 4: Simplify right side
    1,487.48x = 2,092,701.27
  5. Step 5: Solve for x
    x = 2,092,701.27/1,487.48
  6. Step 6: Final answer
    x = 1,406.88

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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.