Home / 2,819.62-4,231.94-1,340.66

Finding the Fourth Proportional to 2,819.62, 4,231.94 and 1,340.66

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Solution

The fourth proportional to 2,819.62, 4,231.94 and 1,340.66 is: 2,012.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,819.62 : 4,231.94 = 1,340.66 : x
  2. Step 2: Convert to fraction form
    2,819.62/4,231.94 = 1,340.66/x
  3. Step 3: Cross multiply
    2,819.62x = 4,231.94 × 1,340.66
  4. Step 4: Simplify right side
    2,819.62x = 5,673,585.98
  5. Step 5: Solve for x
    x = 5,673,585.98/2,819.62
  6. Step 6: Final answer
    x = 2,012.18

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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.