Home / 6,238.71-8,612.19-3,882.42

Finding the Fourth Proportional to 6,238.71, 8,612.19 and 3,882.42

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Solution

The fourth proportional to 6,238.71, 8,612.19 and 3,882.42 is: 5,359.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,238.71 : 8,612.19 = 3,882.42 : x
  2. Step 2: Convert to fraction form
    6,238.71/8,612.19 = 3,882.42/x
  3. Step 3: Cross multiply
    6,238.71x = 8,612.19 × 3,882.42
  4. Step 4: Simplify right side
    6,238.71x = 33,436,138.70
  5. Step 5: Solve for x
    x = 33,436,138.70/6,238.71
  6. Step 6: Final answer
    x = 5,359.46

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.