Home / 5,715.92-7,882.18-3,475.61

Finding the Fourth Proportional to 5,715.92, 7,882.18 and 3,475.61

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Solution

The fourth proportional to 5,715.92, 7,882.18 and 3,475.61 is: 4,792.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,715.92 : 7,882.18 = 3,475.61 : x
  2. Step 2: Convert to fraction form
    5,715.92/7,882.18 = 3,475.61/x
  3. Step 3: Cross multiply
    5,715.92x = 7,882.18 × 3,475.61
  4. Step 4: Simplify right side
    5,715.92x = 27,395,409.43
  5. Step 5: Solve for x
    x = 27,395,409.43/5,715.92
  6. Step 6: Final answer
    x = 4,792.82

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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.