Home / 2,819.88-4,231.34-1,177.55

Finding the Fourth Proportional to 2,819.88, 4,231.34 and 1,177.55

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Solution

The fourth proportional to 2,819.88, 4,231.34 and 1,177.55 is: 1,766.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,819.88 : 4,231.34 = 1,177.55 : x
  2. Step 2: Convert to fraction form
    2,819.88/4,231.34 = 1,177.55/x
  3. Step 3: Cross multiply
    2,819.88x = 4,231.34 × 1,177.55
  4. Step 4: Simplify right side
    2,819.88x = 4,982,631.46
  5. Step 5: Solve for x
    x = 4,982,631.46/2,819.88
  6. Step 6: Final answer
    x = 1,766.97

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.