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Finding the Fourth Proportional to 7,152.59, 10,731.85 and 3,861.81

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Solution

The fourth proportional to 7,152.59, 10,731.85 and 3,861.81 is: 5,794.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,152.59 : 10,731.85 = 3,861.81 : x
  2. Step 2: Convert to fraction form
    7,152.59/10,731.85 = 3,861.81/x
  3. Step 3: Cross multiply
    7,152.59x = 10,731.85 × 3,861.81
  4. Step 4: Simplify right side
    7,152.59x = 41,444,346.34
  5. Step 5: Solve for x
    x = 41,444,346.34/7,152.59
  6. Step 6: Final answer
    x = 5,794.31

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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.