Home / 2,939.25-4,408.71-2,149.42

Finding the Fourth Proportional to 2,939.25, 4,408.71 and 2,149.42

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Solution

The fourth proportional to 2,939.25, 4,408.71 and 2,149.42 is: 3,224.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,939.25 : 4,408.71 = 2,149.42 : x
  2. Step 2: Convert to fraction form
    2,939.25/4,408.71 = 2,149.42/x
  3. Step 3: Cross multiply
    2,939.25x = 4,408.71 × 2,149.42
  4. Step 4: Simplify right side
    2,939.25x = 9,476,147.68
  5. Step 5: Solve for x
    x = 9,476,147.68/2,939.25
  6. Step 6: Final answer
    x = 3,224.00

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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.