Home / 6,791.20-9,371.25-3,958.12

Finding the Fourth Proportional to 6,791.20, 9,371.25 and 3,958.12

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Solution

The fourth proportional to 6,791.20, 9,371.25 and 3,958.12 is: 5,461.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,791.20 : 9,371.25 = 3,958.12 : x
  2. Step 2: Convert to fraction form
    6,791.20/9,371.25 = 3,958.12/x
  3. Step 3: Cross multiply
    6,791.20x = 9,371.25 × 3,958.12
  4. Step 4: Simplify right side
    6,791.20x = 37,092,532.05
  5. Step 5: Solve for x
    x = 37,092,532.05/6,791.20
  6. Step 6: Final answer
    x = 5,461.85

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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.