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Finding the Fourth Proportional to 6,640.63, 9,961.22 and 2,258.13

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Solution

The fourth proportional to 6,640.63, 9,961.22 and 2,258.13 is: 3,387.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,640.63 : 9,961.22 = 2,258.13 : x
  2. Step 2: Convert to fraction form
    6,640.63/9,961.22 = 2,258.13/x
  3. Step 3: Cross multiply
    6,640.63x = 9,961.22 × 2,258.13
  4. Step 4: Simplify right side
    6,640.63x = 22,493,729.72
  5. Step 5: Solve for x
    x = 22,493,729.72/6,640.63
  6. Step 6: Final answer
    x = 3,387.29

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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.