Home / 3,149.20-4,716.48-1,687.52

Finding the Fourth Proportional to 3,149.20, 4,716.48 and 1,687.52

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Solution

The fourth proportional to 3,149.20, 4,716.48 and 1,687.52 is: 2,527.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,149.20 : 4,716.48 = 1,687.52 : x
  2. Step 2: Convert to fraction form
    3,149.20/4,716.48 = 1,687.52/x
  3. Step 3: Cross multiply
    3,149.20x = 4,716.48 × 1,687.52
  4. Step 4: Simplify right side
    3,149.20x = 7,959,154.33
  5. Step 5: Solve for x
    x = 7,959,154.33/3,149.20
  6. Step 6: Final answer
    x = 2,527.36

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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.