Home / 3,487.18-5,229.38-1,538

Finding the Fourth Proportional to 3,487.18, 5,229.38 and 1,538

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Solution

The fourth proportional to 3,487.18, 5,229.38 and 1,538 is: 2,306.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,487.18 : 5,229.38 = 1,538 : x
  2. Step 2: Convert to fraction form
    3,487.18/5,229.38 = 1,538/x
  3. Step 3: Cross multiply
    3,487.18x = 5,229.38 × 1,538
  4. Step 4: Simplify right side
    3,487.18x = 8,042,786.44
  5. Step 5: Solve for x
    x = 8,042,786.44/3,487.18
  6. Step 6: Final answer
    x = 2,306.39

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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.