Home / 3,999.33-5,519.09-2,231.03

Finding the Fourth Proportional to 3,999.33, 5,519.09 and 2,231.03

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Solution

The fourth proportional to 3,999.33, 5,519.09 and 2,231.03 is: 3,078.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,999.33 : 5,519.09 = 2,231.03 : x
  2. Step 2: Convert to fraction form
    3,999.33/5,519.09 = 2,231.03/x
  3. Step 3: Cross multiply
    3,999.33x = 5,519.09 × 2,231.03
  4. Step 4: Simplify right side
    3,999.33x = 12,313,274.74
  5. Step 5: Solve for x
    x = 12,313,274.74/3,999.33
  6. Step 6: Final answer
    x = 3,078.83

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1.5x scale

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.