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Finding the Fourth Proportional to 7,247.66, 10,874.92 and 3,960.65

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Solution

The fourth proportional to 7,247.66, 10,874.92 and 3,960.65 is: 5,942.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,247.66 : 10,874.92 = 3,960.65 : x
  2. Step 2: Convert to fraction form
    7,247.66/10,874.92 = 3,960.65/x
  3. Step 3: Cross multiply
    7,247.66x = 10,874.92 × 3,960.65
  4. Step 4: Simplify right side
    7,247.66x = 43,071,769.18
  5. Step 5: Solve for x
    x = 43,071,769.18/7,247.66
  6. Step 6: Final answer
    x = 5,942.86

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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.