Home / 3,329.86-4,997.87-1,687.55

Finding the Fourth Proportional to 3,329.86, 4,997.87 and 1,687.55

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Solution

The fourth proportional to 3,329.86, 4,997.87 and 1,687.55 is: 2,532.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,329.86 : 4,997.87 = 1,687.55 : x
  2. Step 2: Convert to fraction form
    3,329.86/4,997.87 = 1,687.55/x
  3. Step 3: Cross multiply
    3,329.86x = 4,997.87 × 1,687.55
  4. Step 4: Simplify right side
    3,329.86x = 8,434,147.08
  5. Step 5: Solve for x
    x = 8,434,147.08/3,329.86
  6. Step 6: Final answer
    x = 2,532.89

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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.