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Finding the Fourth Proportional to 3,971.50, 5,481.02 and 2,203.44

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Solution

The fourth proportional to 3,971.50, 5,481.02 and 2,203.44 is: 3,040.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,971.50 : 5,481.02 = 2,203.44 : x
  2. Step 2: Convert to fraction form
    3,971.50/5,481.02 = 2,203.44/x
  3. Step 3: Cross multiply
    3,971.50x = 5,481.02 × 2,203.44
  4. Step 4: Simplify right side
    3,971.50x = 12,077,098.71
  5. Step 5: Solve for x
    x = 12,077,098.71/3,971.50
  6. Step 6: Final answer
    x = 3,040.94

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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.