Home / 3,458.38-5,188.25-1,118.97

Finding the Fourth Proportional to 3,458.38, 5,188.25 and 1,118.97

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Solution

The fourth proportional to 3,458.38, 5,188.25 and 1,118.97 is: 1,678.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,458.38 : 5,188.25 = 1,118.97 : x
  2. Step 2: Convert to fraction form
    3,458.38/5,188.25 = 1,118.97/x
  3. Step 3: Cross multiply
    3,458.38x = 5,188.25 × 1,118.97
  4. Step 4: Simplify right side
    3,458.38x = 5,805,496.10
  5. Step 5: Solve for x
    x = 5,805,496.10/3,458.38
  6. Step 6: Final answer
    x = 1,678.68

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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.