Home / 3,864.78-5,796.90-1,399.14

Finding the Fourth Proportional to 3,864.78, 5,796.90 and 1,399.14

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Solution

The fourth proportional to 3,864.78, 5,796.90 and 1,399.14 is: 2,098.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,864.78 : 5,796.90 = 1,399.14 : x
  2. Step 2: Convert to fraction form
    3,864.78/5,796.90 = 1,399.14/x
  3. Step 3: Cross multiply
    3,864.78x = 5,796.90 × 1,399.14
  4. Step 4: Simplify right side
    3,864.78x = 8,110,674.67
  5. Step 5: Solve for x
    x = 8,110,674.67/3,864.78
  6. Step 6: Final answer
    x = 2,098.61

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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.