Home / 3,859.85-5,791.16-1,518.56

Finding the Fourth Proportional to 3,859.85, 5,791.16 and 1,518.56

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Solution

The fourth proportional to 3,859.85, 5,791.16 and 1,518.56 is: 2,278.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,859.85 : 5,791.16 = 1,518.56 : x
  2. Step 2: Convert to fraction form
    3,859.85/5,791.16 = 1,518.56/x
  3. Step 3: Cross multiply
    3,859.85x = 5,791.16 × 1,518.56
  4. Step 4: Simplify right side
    3,859.85x = 8,794,220.49
  5. Step 5: Solve for x
    x = 8,794,220.49/3,859.85
  6. Step 6: Final answer
    x = 2,278.39

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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.