Home / 5,422.38-8,127.90-2,502.60

Finding the Fourth Proportional to 5,422.38, 8,127.90 and 2,502.60

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Solution

The fourth proportional to 5,422.38, 8,127.90 and 2,502.60 is: 3,751.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,422.38 : 8,127.90 = 2,502.60 : x
  2. Step 2: Convert to fraction form
    5,422.38/8,127.90 = 2,502.60/x
  3. Step 3: Cross multiply
    5,422.38x = 8,127.90 × 2,502.60
  4. Step 4: Simplify right side
    5,422.38x = 20,340,882.54
  5. Step 5: Solve for x
    x = 20,340,882.54/5,422.38
  6. Step 6: Final answer
    x = 3,751.28

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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.