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Finding the Fourth Proportional to 3,640.22, 5,461.11 and 2,080.97

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Solution

The fourth proportional to 3,640.22, 5,461.11 and 2,080.97 is: 3,121.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,640.22 : 5,461.11 = 2,080.97 : x
  2. Step 2: Convert to fraction form
    3,640.22/5,461.11 = 2,080.97/x
  3. Step 3: Cross multiply
    3,640.22x = 5,461.11 × 2,080.97
  4. Step 4: Simplify right side
    3,640.22x = 11,364,419.73
  5. Step 5: Solve for x
    x = 11,364,419.73/3,640.22
  6. Step 6: Final answer
    x = 3,121.90

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1.5x scale

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.