Home / 7,385.25-11,077.88-2,191.13

Finding the Fourth Proportional to 7,385.25, 11,077.88 and 2,191.13

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Solution

The fourth proportional to 7,385.25, 11,077.88 and 2,191.13 is: 3,286.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,385.25 : 11,077.88 = 2,191.13 : x
  2. Step 2: Convert to fraction form
    7,385.25/11,077.88 = 2,191.13/x
  3. Step 3: Cross multiply
    7,385.25x = 11,077.88 × 2,191.13
  4. Step 4: Simplify right side
    7,385.25x = 24,273,008.86
  5. Step 5: Solve for x
    x = 24,273,008.86/7,385.25
  6. Step 6: Final answer
    x = 3,286.69

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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.