Home / 5,240.62-7,861.82-2,608.28

Finding the Fourth Proportional to 5,240.62, 7,861.82 and 2,608.28

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Solution

The fourth proportional to 5,240.62, 7,861.82 and 2,608.28 is: 3,912.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,240.62 : 7,861.82 = 2,608.28 : x
  2. Step 2: Convert to fraction form
    5,240.62/7,861.82 = 2,608.28/x
  3. Step 3: Cross multiply
    5,240.62x = 7,861.82 × 2,608.28
  4. Step 4: Simplify right side
    5,240.62x = 20,505,827.87
  5. Step 5: Solve for x
    x = 20,505,827.87/5,240.62
  6. Step 6: Final answer
    x = 3,912.86

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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.