Home / 3,747.16-5,158.38-3,220.12

Finding the Fourth Proportional to 3,747.16, 5,158.38 and 3,220.12

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Solution

The fourth proportional to 3,747.16, 5,158.38 and 3,220.12 is: 4,432.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,747.16 : 5,158.38 = 3,220.12 : x
  2. Step 2: Convert to fraction form
    3,747.16/5,158.38 = 3,220.12/x
  3. Step 3: Cross multiply
    3,747.16x = 5,158.38 × 3,220.12
  4. Step 4: Simplify right side
    3,747.16x = 16,610,602.61
  5. Step 5: Solve for x
    x = 16,610,602.61/3,747.16
  6. Step 6: Final answer
    x = 4,432.85

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Half scale
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Double scale
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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.