Home / 3,979.52-5,966.32-2,419.88

Finding the Fourth Proportional to 3,979.52, 5,966.32 and 2,419.88

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Solution

The fourth proportional to 3,979.52, 5,966.32 and 2,419.88 is: 3,628.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,979.52 : 5,966.32 = 2,419.88 : x
  2. Step 2: Convert to fraction form
    3,979.52/5,966.32 = 2,419.88/x
  3. Step 3: Cross multiply
    3,979.52x = 5,966.32 × 2,419.88
  4. Step 4: Simplify right side
    3,979.52x = 14,437,778.44
  5. Step 5: Solve for x
    x = 14,437,778.44/3,979.52
  6. Step 6: Final answer
    x = 3,628.02

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.