Home / 3,972.73-5,481.95-2,379.05

Finding the Fourth Proportional to 3,972.73, 5,481.95 and 2,379.05

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Solution

The fourth proportional to 3,972.73, 5,481.95 and 2,379.05 is: 3,282.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,972.73 : 5,481.95 = 2,379.05 : x
  2. Step 2: Convert to fraction form
    3,972.73/5,481.95 = 2,379.05/x
  3. Step 3: Cross multiply
    3,972.73x = 5,481.95 × 2,379.05
  4. Step 4: Simplify right side
    3,972.73x = 13,041,845.24
  5. Step 5: Solve for x
    x = 13,041,845.24/3,972.73
  6. Step 6: Final answer
    x = 3,282.84

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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.