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Finding the Fourth Proportional to 3,983.71, 5,975.56 and 1,791.85

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Solution

The fourth proportional to 3,983.71, 5,975.56 and 1,791.85 is: 2,687.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,983.71 : 5,975.56 = 1,791.85 : x
  2. Step 2: Convert to fraction form
    3,983.71/5,975.56 = 1,791.85/x
  3. Step 3: Cross multiply
    3,983.71x = 5,975.56 × 1,791.85
  4. Step 4: Simplify right side
    3,983.71x = 10,707,294.49
  5. Step 5: Solve for x
    x = 10,707,294.49/3,983.71
  6. Step 6: Final answer
    x = 2,687.77

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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.