Home / 1,819.10-2,508.38-1,228.61

Finding the Fourth Proportional to 1,819.10, 2,508.38 and 1,228.61

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Solution

The fourth proportional to 1,819.10, 2,508.38 and 1,228.61 is: 1,694.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,819.10 : 2,508.38 = 1,228.61 : x
  2. Step 2: Convert to fraction form
    1,819.10/2,508.38 = 1,228.61/x
  3. Step 3: Cross multiply
    1,819.10x = 2,508.38 × 1,228.61
  4. Step 4: Simplify right side
    1,819.10x = 3,081,814.61
  5. Step 5: Solve for x
    x = 3,081,814.61/1,819.10
  6. Step 6: Final answer
    x = 1,694.14

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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.