Home / 5,517.91-7,614.65-4,107.90

Finding the Fourth Proportional to 5,517.91, 7,614.65 and 4,107.90

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Solution

The fourth proportional to 5,517.91, 7,614.65 and 4,107.90 is: 5,668.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,517.91 : 7,614.65 = 4,107.90 : x
  2. Step 2: Convert to fraction form
    5,517.91/7,614.65 = 4,107.90/x
  3. Step 3: Cross multiply
    5,517.91x = 7,614.65 × 4,107.90
  4. Step 4: Simplify right side
    5,517.91x = 31,280,220.74
  5. Step 5: Solve for x
    x = 31,280,220.74/5,517.91
  6. Step 6: Final answer
    x = 5,668.85

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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.