Home / 2,999.11-4,138.91-2,004.79

Finding the Fourth Proportional to 2,999.11, 4,138.91 and 2,004.79

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Solution

The fourth proportional to 2,999.11, 4,138.91 and 2,004.79 is: 2,766.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,999.11 : 4,138.91 = 2,004.79 : x
  2. Step 2: Convert to fraction form
    2,999.11/4,138.91 = 2,004.79/x
  3. Step 3: Cross multiply
    2,999.11x = 4,138.91 × 2,004.79
  4. Step 4: Simplify right side
    2,999.11x = 8,297,645.38
  5. Step 5: Solve for x
    x = 8,297,645.38/2,999.11
  6. Step 6: Final answer
    x = 2,766.70

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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.