Home / 3,963.81-5,469.98-2,195.37

Finding the Fourth Proportional to 3,963.81, 5,469.98 and 2,195.37

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Solution

The fourth proportional to 3,963.81, 5,469.98 and 2,195.37 is: 3,029.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,963.81 : 5,469.98 = 2,195.37 : x
  2. Step 2: Convert to fraction form
    3,963.81/5,469.98 = 2,195.37/x
  3. Step 3: Cross multiply
    3,963.81x = 5,469.98 × 2,195.37
  4. Step 4: Simplify right side
    3,963.81x = 12,008,649.16
  5. Step 5: Solve for x
    x = 12,008,649.16/3,963.81
  6. Step 6: Final answer
    x = 3,029.58

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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.