Home / 3,972.42-5,481.86-2,203.99

Finding the Fourth Proportional to 3,972.42, 5,481.86 and 2,203.99

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Solution

The fourth proportional to 3,972.42, 5,481.86 and 2,203.99 is: 3,041.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,972.42 : 5,481.86 = 2,203.99 : x
  2. Step 2: Convert to fraction form
    3,972.42/5,481.86 = 2,203.99/x
  3. Step 3: Cross multiply
    3,972.42x = 5,481.86 × 2,203.99
  4. Step 4: Simplify right side
    3,972.42x = 12,081,964.62
  5. Step 5: Solve for x
    x = 12,081,964.62/3,972.42
  6. Step 6: Final answer
    x = 3,041.47

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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.