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Finding the Fourth Proportional to 6,505, 9,757.92 and 2,608.90

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Solution

The fourth proportional to 6,505, 9,757.92 and 2,608.90 is: 3,913.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,505 : 9,757.92 = 2,608.90 : x
  2. Step 2: Convert to fraction form
    6,505/9,757.92 = 2,608.90/x
  3. Step 3: Cross multiply
    6,505x = 9,757.92 × 2,608.90
  4. Step 4: Simplify right side
    6,505x = 25,457,437.49
  5. Step 5: Solve for x
    x = 25,457,437.49/6,505
  6. Step 6: Final answer
    x = 3,913.52

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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.