Home / 3,540.14-4,890.39-2,836.66

Finding the Fourth Proportional to 3,540.14, 4,890.39 and 2,836.66

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Solution

The fourth proportional to 3,540.14, 4,890.39 and 2,836.66 is: 3,918.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,540.14 : 4,890.39 = 2,836.66 : x
  2. Step 2: Convert to fraction form
    3,540.14/4,890.39 = 2,836.66/x
  3. Step 3: Cross multiply
    3,540.14x = 4,890.39 × 2,836.66
  4. Step 4: Simplify right side
    3,540.14x = 13,872,349.25
  5. Step 5: Solve for x
    x = 13,872,349.25/3,540.14
  6. Step 6: Final answer
    x = 3,918.59

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.