Home / 3,385.32-5,098.54-2,979.80

Finding the Fourth Proportional to 3,385.32, 5,098.54 and 2,979.80

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Solution

The fourth proportional to 3,385.32, 5,098.54 and 2,979.80 is: 4,487.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,385.32 : 5,098.54 = 2,979.80 : x
  2. Step 2: Convert to fraction form
    3,385.32/5,098.54 = 2,979.80/x
  3. Step 3: Cross multiply
    3,385.32x = 5,098.54 × 2,979.80
  4. Step 4: Simplify right side
    3,385.32x = 15,192,629.49
  5. Step 5: Solve for x
    x = 15,192,629.49/3,385.32
  6. Step 6: Final answer
    x = 4,487.80

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.