Home / 3,963.21-5,469.27-2,194.80

Finding the Fourth Proportional to 3,963.21, 5,469.27 and 2,194.80

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Solution

The fourth proportional to 3,963.21, 5,469.27 and 2,194.80 is: 3,028.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,963.21 : 5,469.27 = 2,194.80 : x
  2. Step 2: Convert to fraction form
    3,963.21/5,469.27 = 2,194.80/x
  3. Step 3: Cross multiply
    3,963.21x = 5,469.27 × 2,194.80
  4. Step 4: Simplify right side
    3,963.21x = 12,003,953.80
  5. Step 5: Solve for x
    x = 12,003,953.80/3,963.21
  6. Step 6: Final answer
    x = 3,028.85

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1.5x scale

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.