Home / 3,239.90-4,468.69-2,119.04

Finding the Fourth Proportional to 3,239.90, 4,468.69 and 2,119.04

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Solution

The fourth proportional to 3,239.90, 4,468.69 and 2,119.04 is: 2,922.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,239.90 : 4,468.69 = 2,119.04 : x
  2. Step 2: Convert to fraction form
    3,239.90/4,468.69 = 2,119.04/x
  3. Step 3: Cross multiply
    3,239.90x = 4,468.69 × 2,119.04
  4. Step 4: Simplify right side
    3,239.90x = 9,469,332.86
  5. Step 5: Solve for x
    x = 9,469,332.86/3,239.90
  6. Step 6: Final answer
    x = 2,922.72

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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.