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Finding the Fourth Proportional to 3,246, 4,480.20 and 2,004.72

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Solution

The fourth proportional to 3,246, 4,480.20 and 2,004.72 is: 2,766.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,246 : 4,480.20 = 2,004.72 : x
  2. Step 2: Convert to fraction form
    3,246/4,480.20 = 2,004.72/x
  3. Step 3: Cross multiply
    3,246x = 4,480.20 × 2,004.72
  4. Step 4: Simplify right side
    3,246x = 8,981,546.54
  5. Step 5: Solve for x
    x = 8,981,546.54/3,246
  6. Step 6: Final answer
    x = 2,766.96

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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.