Home / 7,385.04-11,077.56-2,191.20

Finding the Fourth Proportional to 7,385.04, 11,077.56 and 2,191.20

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Solution

The fourth proportional to 7,385.04, 11,077.56 and 2,191.20 is: 3,286.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,385.04 : 11,077.56 = 2,191.20 : x
  2. Step 2: Convert to fraction form
    7,385.04/11,077.56 = 2,191.20/x
  3. Step 3: Cross multiply
    7,385.04x = 11,077.56 × 2,191.20
  4. Step 4: Simplify right side
    7,385.04x = 24,273,149.47
  5. Step 5: Solve for x
    x = 24,273,149.47/7,385.04
  6. Step 6: Final answer
    x = 3,286.80

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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.