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Finding the Fourth Proportional to 5,114.52, 7,661.76 and 2,650.97

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Solution

The fourth proportional to 5,114.52, 7,661.76 and 2,650.97 is: 3,971.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,114.52 : 7,661.76 = 2,650.97 : x
  2. Step 2: Convert to fraction form
    5,114.52/7,661.76 = 2,650.97/x
  3. Step 3: Cross multiply
    5,114.52x = 7,661.76 × 2,650.97
  4. Step 4: Simplify right side
    5,114.52x = 20,311,057.60
  5. Step 5: Solve for x
    x = 20,311,057.60/5,114.52
  6. Step 6: Final answer
    x = 3,971.25

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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.