Home / 2,682.38-4,021.86-1,587.08

Finding the Fourth Proportional to 2,682.38, 4,021.86 and 1,587.08

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Solution

The fourth proportional to 2,682.38, 4,021.86 and 1,587.08 is: 2,379.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,682.38 : 4,021.86 = 1,587.08 : x
  2. Step 2: Convert to fraction form
    2,682.38/4,021.86 = 1,587.08/x
  3. Step 3: Cross multiply
    2,682.38x = 4,021.86 × 1,587.08
  4. Step 4: Simplify right side
    2,682.38x = 6,383,013.57
  5. Step 5: Solve for x
    x = 6,383,013.57/2,682.38
  6. Step 6: Final answer
    x = 2,379.61

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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.