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Finding the Fourth Proportional to 3,759.97, 5,642.46 and 1,679.28

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Solution

The fourth proportional to 3,759.97, 5,642.46 and 1,679.28 is: 2,520.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,759.97 : 5,642.46 = 1,679.28 : x
  2. Step 2: Convert to fraction form
    3,759.97/5,642.46 = 1,679.28/x
  3. Step 3: Cross multiply
    3,759.97x = 5,642.46 × 1,679.28
  4. Step 4: Simplify right side
    3,759.97x = 9,475,280.81
  5. Step 5: Solve for x
    x = 9,475,280.81/3,759.97
  6. Step 6: Final answer
    x = 2,520.04

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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.