Home / 3,278.44-4,918.57-1,429.71

Finding the Fourth Proportional to 3,278.44, 4,918.57 and 1,429.71

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Solution

The fourth proportional to 3,278.44, 4,918.57 and 1,429.71 is: 2,144.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,278.44 : 4,918.57 = 1,429.71 : x
  2. Step 2: Convert to fraction form
    3,278.44/4,918.57 = 1,429.71/x
  3. Step 3: Cross multiply
    3,278.44x = 4,918.57 × 1,429.71
  4. Step 4: Simplify right side
    3,278.44x = 7,032,121.57
  5. Step 5: Solve for x
    x = 7,032,121.57/3,278.44
  6. Step 6: Final answer
    x = 2,144.96

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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.