Home / 3,908.32-5,390.62-2,395.91

Finding the Fourth Proportional to 3,908.32, 5,390.62 and 2,395.91

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Solution

The fourth proportional to 3,908.32, 5,390.62 and 2,395.91 is: 3,304.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,908.32 : 5,390.62 = 2,395.91 : x
  2. Step 2: Convert to fraction form
    3,908.32/5,390.62 = 2,395.91/x
  3. Step 3: Cross multiply
    3,908.32x = 5,390.62 × 2,395.91
  4. Step 4: Simplify right side
    3,908.32x = 12,915,447.85
  5. Step 5: Solve for x
    x = 12,915,447.85/3,908.32
  6. Step 6: Final answer
    x = 3,304.61

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.