Home / 3,866.49-5,801.76-2,112.75

Finding the Fourth Proportional to 3,866.49, 5,801.76 and 2,112.75

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Solution

The fourth proportional to 3,866.49, 5,801.76 and 2,112.75 is: 3,170.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,866.49 : 5,801.76 = 2,112.75 : x
  2. Step 2: Convert to fraction form
    3,866.49/5,801.76 = 2,112.75/x
  3. Step 3: Cross multiply
    3,866.49x = 5,801.76 × 2,112.75
  4. Step 4: Simplify right side
    3,866.49x = 12,257,668.44
  5. Step 5: Solve for x
    x = 12,257,668.44/3,866.49
  6. Step 6: Final answer
    x = 3,170.23

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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.