Home / 2,686.91-4,028.82-1,224.65

Finding the Fourth Proportional to 2,686.91, 4,028.82 and 1,224.65

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Solution

The fourth proportional to 2,686.91, 4,028.82 and 1,224.65 is: 1,836.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,686.91 : 4,028.82 = 1,224.65 : x
  2. Step 2: Convert to fraction form
    2,686.91/4,028.82 = 1,224.65/x
  3. Step 3: Cross multiply
    2,686.91x = 4,028.82 × 1,224.65
  4. Step 4: Simplify right side
    2,686.91x = 4,933,874.27
  5. Step 5: Solve for x
    x = 4,933,874.27/2,686.91
  6. Step 6: Final answer
    x = 1,836.27

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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.