Home / 3,127.87-4,687.17-2,680.75

Finding the Fourth Proportional to 3,127.87, 4,687.17 and 2,680.75

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Solution

The fourth proportional to 3,127.87, 4,687.17 and 2,680.75 is: 4,017.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,127.87 : 4,687.17 = 2,680.75 : x
  2. Step 2: Convert to fraction form
    3,127.87/4,687.17 = 2,680.75/x
  3. Step 3: Cross multiply
    3,127.87x = 4,687.17 × 2,680.75
  4. Step 4: Simplify right side
    3,127.87x = 12,565,100.42
  5. Step 5: Solve for x
    x = 12,565,100.42/3,127.87
  6. Step 6: Final answer
    x = 4,017.15

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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.