Home / 3,319-4,979.94-2,087.80

Finding the Fourth Proportional to 3,319, 4,979.94 and 2,087.80

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Solution

The fourth proportional to 3,319, 4,979.94 and 2,087.80 is: 3,132.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,319 : 4,979.94 = 2,087.80 : x
  2. Step 2: Convert to fraction form
    3,319/4,979.94 = 2,087.80/x
  3. Step 3: Cross multiply
    3,319x = 4,979.94 × 2,087.80
  4. Step 4: Simplify right side
    3,319x = 10,397,118.73
  5. Step 5: Solve for x
    x = 10,397,118.73/3,319
  6. Step 6: Final answer
    x = 3,132.61

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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.