Home / 4,997.90-7,491.39-3,149.89

Finding the Fourth Proportional to 4,997.90, 7,491.39 and 3,149.89

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Solution

The fourth proportional to 4,997.90, 7,491.39 and 3,149.89 is: 4,721.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,997.90 : 7,491.39 = 3,149.89 : x
  2. Step 2: Convert to fraction form
    4,997.90/7,491.39 = 3,149.89/x
  3. Step 3: Cross multiply
    4,997.90x = 7,491.39 × 3,149.89
  4. Step 4: Simplify right side
    4,997.90x = 23,597,023.91
  5. Step 5: Solve for x
    x = 23,597,023.91/4,997.90
  6. Step 6: Final answer
    x = 4,721.39

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1.5x scale

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.