Home / 3,319.52-4,979.96-1,371.72

Finding the Fourth Proportional to 3,319.52, 4,979.96 and 1,371.72

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Solution

The fourth proportional to 3,319.52, 4,979.96 and 1,371.72 is: 2,057.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,319.52 : 4,979.96 = 1,371.72 : x
  2. Step 2: Convert to fraction form
    3,319.52/4,979.96 = 1,371.72/x
  3. Step 3: Cross multiply
    3,319.52x = 4,979.96 × 1,371.72
  4. Step 4: Simplify right side
    3,319.52x = 6,831,110.73
  5. Step 5: Solve for x
    x = 6,831,110.73/3,319.52
  6. Step 6: Final answer
    x = 2,057.86

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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.