Home / 3,408.80-5,112.56-943.29

Finding the Fourth Proportional to 3,408.80, 5,112.56 and 943.29

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Solution

The fourth proportional to 3,408.80, 5,112.56 and 943.29 is: 1,414.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,408.80 : 5,112.56 = 943.29 : x
  2. Step 2: Convert to fraction form
    3,408.80/5,112.56 = 943.29/x
  3. Step 3: Cross multiply
    3,408.80x = 5,112.56 × 943.29
  4. Step 4: Simplify right side
    3,408.80x = 4,822,629.08
  5. Step 5: Solve for x
    x = 4,822,629.08/3,408.80
  6. Step 6: Final answer
    x = 1,414.76

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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.