Home / 5,103.28-7,049.46-3,998.20

Finding the Fourth Proportional to 5,103.28, 7,049.46 and 3,998.20

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Solution

The fourth proportional to 5,103.28, 7,049.46 and 3,998.20 is: 5,522.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,103.28 : 7,049.46 = 3,998.20 : x
  2. Step 2: Convert to fraction form
    5,103.28/7,049.46 = 3,998.20/x
  3. Step 3: Cross multiply
    5,103.28x = 7,049.46 × 3,998.20
  4. Step 4: Simplify right side
    5,103.28x = 28,185,150.97
  5. Step 5: Solve for x
    x = 28,185,150.97/5,103.28
  6. Step 6: Final answer
    x = 5,522.95

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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.