Home / 5,976.78-8,965.20-2,081.18

Finding the Fourth Proportional to 5,976.78, 8,965.20 and 2,081.18

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Solution

The fourth proportional to 5,976.78, 8,965.20 and 2,081.18 is: 3,121.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,976.78 : 8,965.20 = 2,081.18 : x
  2. Step 2: Convert to fraction form
    5,976.78/8,965.20 = 2,081.18/x
  3. Step 3: Cross multiply
    5,976.78x = 8,965.20 × 2,081.18
  4. Step 4: Simplify right side
    5,976.78x = 18,658,225.15
  5. Step 5: Solve for x
    x = 18,658,225.15/5,976.78
  6. Step 6: Final answer
    x = 3,121.79

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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.