Home / 3,983.32-5,976.94-2,820.80

Finding the Fourth Proportional to 3,983.32, 5,976.94 and 2,820.80

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Solution

The fourth proportional to 3,983.32, 5,976.94 and 2,820.80 is: 4,232.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,983.32 : 5,976.94 = 2,820.80 : x
  2. Step 2: Convert to fraction form
    3,983.32/5,976.94 = 2,820.80/x
  3. Step 3: Cross multiply
    3,983.32x = 5,976.94 × 2,820.80
  4. Step 4: Simplify right side
    3,983.32x = 16,859,760.24
  5. Step 5: Solve for x
    x = 16,859,760.24/3,983.32
  6. Step 6: Final answer
    x = 4,232.59

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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.