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Finding the Fourth Proportional to 5,229.76, 7,846.92 and 1,942.12

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Solution

The fourth proportional to 5,229.76, 7,846.92 and 1,942.12 is: 2,914.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,229.76 : 7,846.92 = 1,942.12 : x
  2. Step 2: Convert to fraction form
    5,229.76/7,846.92 = 1,942.12/x
  3. Step 3: Cross multiply
    5,229.76x = 7,846.92 × 1,942.12
  4. Step 4: Simplify right side
    5,229.76x = 15,239,660.27
  5. Step 5: Solve for x
    x = 15,239,660.27/5,229.76
  6. Step 6: Final answer
    x = 2,914.03

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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.