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Finding the Fourth Proportional to 5,141.20, 7,183.10 and 5,141.20

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Solution

The fourth proportional to 5,141.20, 7,183.10 and 5,141.20 is: 7,183.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,141.20 : 7,183.10 = 5,141.20 : x
  2. Step 2: Convert to fraction form
    5,141.20/7,183.10 = 5,141.20/x
  3. Step 3: Cross multiply
    5,141.20x = 7,183.10 × 5,141.20
  4. Step 4: Simplify right side
    5,141.20x = 36,929,753.72
  5. Step 5: Solve for x
    x = 36,929,753.72/5,141.20
  6. Step 6: Final answer
    x = 7,183.10

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.