Home / 2,819.98-4,229.97-1,781.56

Finding the Fourth Proportional to 2,819.98, 4,229.97 and 1,781.56

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Solution

The fourth proportional to 2,819.98, 4,229.97 and 1,781.56 is: 2,672.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,819.98 : 4,229.97 = 1,781.56 : x
  2. Step 2: Convert to fraction form
    2,819.98/4,229.97 = 1,781.56/x
  3. Step 3: Cross multiply
    2,819.98x = 4,229.97 × 1,781.56
  4. Step 4: Simplify right side
    2,819.98x = 7,535,945.35
  5. Step 5: Solve for x
    x = 7,535,945.35/2,819.98
  6. Step 6: Final answer
    x = 2,672.34

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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.