Home / 3,429.33-5,142.39-1,785.43

Finding the Fourth Proportional to 3,429.33, 5,142.39 and 1,785.43

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Solution

The fourth proportional to 3,429.33, 5,142.39 and 1,785.43 is: 2,677.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,429.33 : 5,142.39 = 1,785.43 : x
  2. Step 2: Convert to fraction form
    3,429.33/5,142.39 = 1,785.43/x
  3. Step 3: Cross multiply
    3,429.33x = 5,142.39 × 1,785.43
  4. Step 4: Simplify right side
    3,429.33x = 9,181,377.38
  5. Step 5: Solve for x
    x = 9,181,377.38/3,429.33
  6. Step 6: Final answer
    x = 2,677.31

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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.