Home / 5,180.73-7,149.17-2,942.55

Finding the Fourth Proportional to 5,180.73, 7,149.17 and 2,942.55

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Solution

The fourth proportional to 5,180.73, 7,149.17 and 2,942.55 is: 4,060.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,180.73 : 7,149.17 = 2,942.55 : x
  2. Step 2: Convert to fraction form
    5,180.73/7,149.17 = 2,942.55/x
  3. Step 3: Cross multiply
    5,180.73x = 7,149.17 × 2,942.55
  4. Step 4: Simplify right side
    5,180.73x = 21,036,775.47
  5. Step 5: Solve for x
    x = 21,036,775.47/5,180.73
  6. Step 6: Final answer
    x = 4,060.58

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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.