Home / 5,423.08-8,134.62-3,115.24

Finding the Fourth Proportional to 5,423.08, 8,134.62 and 3,115.24

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Solution

The fourth proportional to 5,423.08, 8,134.62 and 3,115.24 is: 4,672.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,423.08 : 8,134.62 = 3,115.24 : x
  2. Step 2: Convert to fraction form
    5,423.08/8,134.62 = 3,115.24/x
  3. Step 3: Cross multiply
    5,423.08x = 8,134.62 × 3,115.24
  4. Step 4: Simplify right side
    5,423.08x = 25,341,293.61
  5. Step 5: Solve for x
    x = 25,341,293.61/5,423.08
  6. Step 6: Final answer
    x = 4,672.86

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.