Home / 5,414.91-8,124.97-2,640.07

Finding the Fourth Proportional to 5,414.91, 8,124.97 and 2,640.07

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Solution

The fourth proportional to 5,414.91, 8,124.97 and 2,640.07 is: 3,961.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,414.91 : 8,124.97 = 2,640.07 : x
  2. Step 2: Convert to fraction form
    5,414.91/8,124.97 = 2,640.07/x
  3. Step 3: Cross multiply
    5,414.91x = 8,124.97 × 2,640.07
  4. Step 4: Simplify right side
    5,414.91x = 21,450,504.62
  5. Step 5: Solve for x
    x = 21,450,504.62/5,414.91
  6. Step 6: Final answer
    x = 3,961.38

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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.