Home / 3,919.98-5,882.81-1,455.15

Finding the Fourth Proportional to 3,919.98, 5,882.81 and 1,455.15

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Solution

The fourth proportional to 3,919.98, 5,882.81 and 1,455.15 is: 2,183.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,919.98 : 5,882.81 = 1,455.15 : x
  2. Step 2: Convert to fraction form
    3,919.98/5,882.81 = 1,455.15/x
  3. Step 3: Cross multiply
    3,919.98x = 5,882.81 × 1,455.15
  4. Step 4: Simplify right side
    3,919.98x = 8,560,370.97
  5. Step 5: Solve for x
    x = 8,560,370.97/3,919.98
  6. Step 6: Final answer
    x = 2,183.78

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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.