Home / 3,971.87-5,481.09-2,203.44

Finding the Fourth Proportional to 3,971.87, 5,481.09 and 2,203.44

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Solution

The fourth proportional to 3,971.87, 5,481.09 and 2,203.44 is: 3,040.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,971.87 : 5,481.09 = 2,203.44 : x
  2. Step 2: Convert to fraction form
    3,971.87/5,481.09 = 2,203.44/x
  3. Step 3: Cross multiply
    3,971.87x = 5,481.09 × 2,203.44
  4. Step 4: Simplify right side
    3,971.87x = 12,077,252.95
  5. Step 5: Solve for x
    x = 12,077,252.95/3,971.87
  6. Step 6: Final answer
    x = 3,040.70

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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.