Home / 5,179.70-7,151.52-3,982.58

Finding the Fourth Proportional to 5,179.70, 7,151.52 and 3,982.58

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Solution

The fourth proportional to 5,179.70, 7,151.52 and 3,982.58 is: 5,498.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,179.70 : 7,151.52 = 3,982.58 : x
  2. Step 2: Convert to fraction form
    5,179.70/7,151.52 = 3,982.58/x
  3. Step 3: Cross multiply
    5,179.70x = 7,151.52 × 3,982.58
  4. Step 4: Simplify right side
    5,179.70x = 28,481,500.52
  5. Step 5: Solve for x
    x = 28,481,500.52/5,179.70
  6. Step 6: Final answer
    x = 5,498.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.