Home / 5,177.73-7,145.27-2,819.87

Finding the Fourth Proportional to 5,177.73, 7,145.27 and 2,819.87

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Solution

The fourth proportional to 5,177.73, 7,145.27 and 2,819.87 is: 3,891.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,177.73 : 7,145.27 = 2,819.87 : x
  2. Step 2: Convert to fraction form
    5,177.73/7,145.27 = 2,819.87/x
  3. Step 3: Cross multiply
    5,177.73x = 7,145.27 × 2,819.87
  4. Step 4: Simplify right side
    5,177.73x = 20,148,718.42
  5. Step 5: Solve for x
    x = 20,148,718.42/5,177.73
  6. Step 6: Final answer
    x = 3,891.42

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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.