Home / 2,999.13-4,138.88-1,672.83

Finding the Fourth Proportional to 2,999.13, 4,138.88 and 1,672.83

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Solution

The fourth proportional to 2,999.13, 4,138.88 and 1,672.83 is: 2,308.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,999.13 : 4,138.88 = 1,672.83 : x
  2. Step 2: Convert to fraction form
    2,999.13/4,138.88 = 1,672.83/x
  3. Step 3: Cross multiply
    2,999.13x = 4,138.88 × 1,672.83
  4. Step 4: Simplify right side
    2,999.13x = 6,923,634.27
  5. Step 5: Solve for x
    x = 6,923,634.27/2,999.13
  6. Step 6: Final answer
    x = 2,308.55

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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.