Home / 3,713.92-5,122.26-2,387.76

Finding the Fourth Proportional to 3,713.92, 5,122.26 and 2,387.76

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Solution

The fourth proportional to 3,713.92, 5,122.26 and 2,387.76 is: 3,293.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,713.92 : 5,122.26 = 2,387.76 : x
  2. Step 2: Convert to fraction form
    3,713.92/5,122.26 = 2,387.76/x
  3. Step 3: Cross multiply
    3,713.92x = 5,122.26 × 2,387.76
  4. Step 4: Simplify right side
    3,713.92x = 12,230,727.54
  5. Step 5: Solve for x
    x = 12,230,727.54/3,713.92
  6. Step 6: Final answer
    x = 3,293.21

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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.