Home / 3,414.03-5,120.99-1,105.53

Finding the Fourth Proportional to 3,414.03, 5,120.99 and 1,105.53

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Solution

The fourth proportional to 3,414.03, 5,120.99 and 1,105.53 is: 1,658.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,414.03 : 5,120.99 = 1,105.53 : x
  2. Step 2: Convert to fraction form
    3,414.03/5,120.99 = 1,105.53/x
  3. Step 3: Cross multiply
    3,414.03x = 5,120.99 × 1,105.53
  4. Step 4: Simplify right side
    3,414.03x = 5,661,402.55
  5. Step 5: Solve for x
    x = 5,661,402.55/3,414.03
  6. Step 6: Final answer
    x = 1,658.28

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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.