Home / 3,963.75-5,469.91-2,195.32

Finding the Fourth Proportional to 3,963.75, 5,469.91 and 2,195.32

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Solution

The fourth proportional to 3,963.75, 5,469.91 and 2,195.32 is: 3,029.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,963.75 : 5,469.91 = 2,195.32 : x
  2. Step 2: Convert to fraction form
    3,963.75/5,469.91 = 2,195.32/x
  3. Step 3: Cross multiply
    3,963.75x = 5,469.91 × 2,195.32
  4. Step 4: Simplify right side
    3,963.75x = 12,008,164.50
  5. Step 5: Solve for x
    x = 12,008,164.50/3,963.75
  6. Step 6: Final answer
    x = 3,029.50

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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.