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Finding the Fourth Proportional to 6,891.68, 10,340.25 and 2,509.48

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Solution

The fourth proportional to 6,891.68, 10,340.25 and 2,509.48 is: 3,765.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,891.68 : 10,340.25 = 2,509.48 : x
  2. Step 2: Convert to fraction form
    6,891.68/10,340.25 = 2,509.48/x
  3. Step 3: Cross multiply
    6,891.68x = 10,340.25 × 2,509.48
  4. Step 4: Simplify right side
    6,891.68x = 25,948,650.57
  5. Step 5: Solve for x
    x = 25,948,650.57/6,891.68
  6. Step 6: Final answer
    x = 3,765.21

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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.