Home / 3,864.90-5,786.96-3,179.84

Finding the Fourth Proportional to 3,864.90, 5,786.96 and 3,179.84

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Solution

The fourth proportional to 3,864.90, 5,786.96 and 3,179.84 is: 4,761.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,864.90 : 5,786.96 = 3,179.84 : x
  2. Step 2: Convert to fraction form
    3,864.90/5,786.96 = 3,179.84/x
  3. Step 3: Cross multiply
    3,864.90x = 5,786.96 × 3,179.84
  4. Step 4: Simplify right side
    3,864.90x = 18,401,585.90
  5. Step 5: Solve for x
    x = 18,401,585.90/3,864.90
  6. Step 6: Final answer
    x = 4,761.21

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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.