Home / 3,972.31-5,481.79-2,203.91

Finding the Fourth Proportional to 3,972.31, 5,481.79 and 2,203.91

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Solution

The fourth proportional to 3,972.31, 5,481.79 and 2,203.91 is: 3,041.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,972.31 : 5,481.79 = 2,203.91 : x
  2. Step 2: Convert to fraction form
    3,972.31/5,481.79 = 2,203.91/x
  3. Step 3: Cross multiply
    3,972.31x = 5,481.79 × 2,203.91
  4. Step 4: Simplify right side
    3,972.31x = 12,081,374.85
  5. Step 5: Solve for x
    x = 12,081,374.85/3,972.31
  6. Step 6: Final answer
    x = 3,041.40

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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.