Home / 5,425.81-8,138.71-2,502.52

Finding the Fourth Proportional to 5,425.81, 8,138.71 and 2,502.52

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Solution

The fourth proportional to 5,425.81, 8,138.71 and 2,502.52 is: 3,753.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,425.81 : 8,138.71 = 2,502.52 : x
  2. Step 2: Convert to fraction form
    5,425.81/8,138.71 = 2,502.52/x
  3. Step 3: Cross multiply
    5,425.81x = 8,138.71 × 2,502.52
  4. Step 4: Simplify right side
    5,425.81x = 20,367,284.55
  5. Step 5: Solve for x
    x = 20,367,284.55/5,425.81
  6. Step 6: Final answer
    x = 3,753.78

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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.