Home / 3,434.78-5,147.34-1,629.66

Finding the Fourth Proportional to 3,434.78, 5,147.34 and 1,629.66

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Solution

The fourth proportional to 3,434.78, 5,147.34 and 1,629.66 is: 2,442.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,434.78 : 5,147.34 = 1,629.66 : x
  2. Step 2: Convert to fraction form
    3,434.78/5,147.34 = 1,629.66/x
  3. Step 3: Cross multiply
    3,434.78x = 5,147.34 × 1,629.66
  4. Step 4: Simplify right side
    3,434.78x = 8,388,414.10
  5. Step 5: Solve for x
    x = 8,388,414.10/3,434.78
  6. Step 6: Final answer
    x = 2,442.20

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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.