Home / 5,540.97-7,647.24-3,151.87

Finding the Fourth Proportional to 5,540.97, 7,647.24 and 3,151.87

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Solution

The fourth proportional to 5,540.97, 7,647.24 and 3,151.87 is: 4,349.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,540.97 : 7,647.24 = 3,151.87 : x
  2. Step 2: Convert to fraction form
    5,540.97/7,647.24 = 3,151.87/x
  3. Step 3: Cross multiply
    5,540.97x = 7,647.24 × 3,151.87
  4. Step 4: Simplify right side
    5,540.97x = 24,103,106.34
  5. Step 5: Solve for x
    x = 24,103,106.34/5,540.97
  6. Step 6: Final answer
    x = 4,349.98

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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.