Home / 3,979.90-5,963.52-3,360.70

Finding the Fourth Proportional to 3,979.90, 5,963.52 and 3,360.70

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Solution

The fourth proportional to 3,979.90, 5,963.52 and 3,360.70 is: 5,035.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,979.90 : 5,963.52 = 3,360.70 : x
  2. Step 2: Convert to fraction form
    3,979.90/5,963.52 = 3,360.70/x
  3. Step 3: Cross multiply
    3,979.90x = 5,963.52 × 3,360.70
  4. Step 4: Simplify right side
    3,979.90x = 20,041,601.66
  5. Step 5: Solve for x
    x = 20,041,601.66/3,979.90
  6. Step 6: Final answer
    x = 5,035.70

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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.