Home / 5,561.28-8,344.76-2,639.61

Finding the Fourth Proportional to 5,561.28, 8,344.76 and 2,639.61

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Solution

The fourth proportional to 5,561.28, 8,344.76 and 2,639.61 is: 3,960.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,561.28 : 8,344.76 = 2,639.61 : x
  2. Step 2: Convert to fraction form
    5,561.28/8,344.76 = 2,639.61/x
  3. Step 3: Cross multiply
    5,561.28x = 8,344.76 × 2,639.61
  4. Step 4: Simplify right side
    5,561.28x = 22,026,898.75
  5. Step 5: Solve for x
    x = 22,026,898.75/5,561.28
  6. Step 6: Final answer
    x = 3,960.76

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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.