Home / 5,177.32-7,144.63-2,819.47

Finding the Fourth Proportional to 5,177.32, 7,144.63 and 2,819.47

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Solution

The fourth proportional to 5,177.32, 7,144.63 and 2,819.47 is: 3,890.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,177.32 : 7,144.63 = 2,819.47 : x
  2. Step 2: Convert to fraction form
    5,177.32/7,144.63 = 2,819.47/x
  3. Step 3: Cross multiply
    5,177.32x = 7,144.63 × 2,819.47
  4. Step 4: Simplify right side
    5,177.32x = 20,144,069.95
  5. Step 5: Solve for x
    x = 20,144,069.95/5,177.32
  6. Step 6: Final answer
    x = 3,890.83

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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.