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Finding the Fourth Proportional to 2,757.92, 4,127.15 and 2,103.44

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Solution

The fourth proportional to 2,757.92, 4,127.15 and 2,103.44 is: 3,147.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,757.92 : 4,127.15 = 2,103.44 : x
  2. Step 2: Convert to fraction form
    2,757.92/4,127.15 = 2,103.44/x
  3. Step 3: Cross multiply
    2,757.92x = 4,127.15 × 2,103.44
  4. Step 4: Simplify right side
    2,757.92x = 8,681,197.02
  5. Step 5: Solve for x
    x = 8,681,197.02/2,757.92
  6. Step 6: Final answer
    x = 3,147.74

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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.