Home / 5,177.88-7,145.42-2,819.97

Finding the Fourth Proportional to 5,177.88, 7,145.42 and 2,819.97

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Solution

The fourth proportional to 5,177.88, 7,145.42 and 2,819.97 is: 3,891.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,177.88 : 7,145.42 = 2,819.97 : x
  2. Step 2: Convert to fraction form
    5,177.88/7,145.42 = 2,819.97/x
  3. Step 3: Cross multiply
    5,177.88x = 7,145.42 × 2,819.97
  4. Step 4: Simplify right side
    5,177.88x = 20,149,855.94
  5. Step 5: Solve for x
    x = 20,149,855.94/5,177.88
  6. Step 6: Final answer
    x = 3,891.53

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