Home / 5,791.38-7,991.91-3,432.12

Finding the Fourth Proportional to 5,791.38, 7,991.91 and 3,432.12

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Solution

The fourth proportional to 5,791.38, 7,991.91 and 3,432.12 is: 4,736.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,791.38 : 7,991.91 = 3,432.12 : x
  2. Step 2: Convert to fraction form
    5,791.38/7,991.91 = 3,432.12/x
  3. Step 3: Cross multiply
    5,791.38x = 7,991.91 × 3,432.12
  4. Step 4: Simplify right side
    5,791.38x = 27,429,194.15
  5. Step 5: Solve for x
    x = 27,429,194.15/5,791.38
  6. Step 6: Final answer
    x = 4,736.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.