Home / 3,452.31-5,178.33-1,112.40

Finding the Fourth Proportional to 3,452.31, 5,178.33 and 1,112.40

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Solution

The fourth proportional to 3,452.31, 5,178.33 and 1,112.40 is: 1,668.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,452.31 : 5,178.33 = 1,112.40 : x
  2. Step 2: Convert to fraction form
    3,452.31/5,178.33 = 1,112.40/x
  3. Step 3: Cross multiply
    3,452.31x = 5,178.33 × 1,112.40
  4. Step 4: Simplify right side
    3,452.31x = 5,760,374.29
  5. Step 5: Solve for x
    x = 5,760,374.29/3,452.31
  6. Step 6: Final answer
    x = 1,668.56

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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.