Home / 3,919.80-5,914.62-3,767.91

Finding the Fourth Proportional to 3,919.80, 5,914.62 and 3,767.91

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Solution

The fourth proportional to 3,919.80, 5,914.62 and 3,767.91 is: 5,685.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,919.80 : 5,914.62 = 3,767.91 : x
  2. Step 2: Convert to fraction form
    3,919.80/5,914.62 = 3,767.91/x
  3. Step 3: Cross multiply
    3,919.80x = 5,914.62 × 3,767.91
  4. Step 4: Simplify right side
    3,919.80x = 22,285,755.84
  5. Step 5: Solve for x
    x = 22,285,755.84/3,919.80
  6. Step 6: Final answer
    x = 5,685.43

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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.