Home / 3,972.18-5,481.69-2,203.98

Finding the Fourth Proportional to 3,972.18, 5,481.69 and 2,203.98

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Solution

The fourth proportional to 3,972.18, 5,481.69 and 2,203.98 is: 3,041.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,972.18 : 5,481.69 = 2,203.98 : x
  2. Step 2: Convert to fraction form
    3,972.18/5,481.69 = 2,203.98/x
  3. Step 3: Cross multiply
    3,972.18x = 5,481.69 × 2,203.98
  4. Step 4: Simplify right side
    3,972.18x = 12,081,535.13
  5. Step 5: Solve for x
    x = 12,081,535.13/3,972.18
  6. Step 6: Final answer
    x = 3,041.54

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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.