Home / 6,191.14-8,542.56-3,672.78

Finding the Fourth Proportional to 6,191.14, 8,542.56 and 3,672.78

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Solution

The fourth proportional to 6,191.14, 8,542.56 and 3,672.78 is: 5,067.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,191.14 : 8,542.56 = 3,672.78 : x
  2. Step 2: Convert to fraction form
    6,191.14/8,542.56 = 3,672.78/x
  3. Step 3: Cross multiply
    6,191.14x = 8,542.56 × 3,672.78
  4. Step 4: Simplify right side
    6,191.14x = 31,374,943.52
  5. Step 5: Solve for x
    x = 31,374,943.52/6,191.14
  6. Step 6: Final answer
    x = 5,067.72

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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.