Home / 3,791.40-5,687.10-2,236.20

Finding the Fourth Proportional to 3,791.40, 5,687.10 and 2,236.20

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Solution

The fourth proportional to 3,791.40, 5,687.10 and 2,236.20 is: 3,354.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,791.40 : 5,687.10 = 2,236.20 : x
  2. Step 2: Convert to fraction form
    3,791.40/5,687.10 = 2,236.20/x
  3. Step 3: Cross multiply
    3,791.40x = 5,687.10 × 2,236.20
  4. Step 4: Simplify right side
    3,791.40x = 12,717,493.02
  5. Step 5: Solve for x
    x = 12,717,493.02/3,791.40
  6. Step 6: Final answer
    x = 3,354.30

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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.