Home / 5,177.26-7,144.61-2,819.42

Finding the Fourth Proportional to 5,177.26, 7,144.61 and 2,819.42

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Solution

The fourth proportional to 5,177.26, 7,144.61 and 2,819.42 is: 3,890.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,177.26 : 7,144.61 = 2,819.42 : x
  2. Step 2: Convert to fraction form
    5,177.26/7,144.61 = 2,819.42/x
  3. Step 3: Cross multiply
    5,177.26x = 7,144.61 × 2,819.42
  4. Step 4: Simplify right side
    5,177.26x = 20,143,627.65
  5. Step 5: Solve for x
    x = 20,143,627.65/5,177.26
  6. Step 6: Final answer
    x = 3,890.79

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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.