Home / 3,891.33-5,370.20-2,213.03

Finding the Fourth Proportional to 3,891.33, 5,370.20 and 2,213.03

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Solution

The fourth proportional to 3,891.33, 5,370.20 and 2,213.03 is: 3,054.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,891.33 : 5,370.20 = 2,213.03 : x
  2. Step 2: Convert to fraction form
    3,891.33/5,370.20 = 2,213.03/x
  3. Step 3: Cross multiply
    3,891.33x = 5,370.20 × 2,213.03
  4. Step 4: Simplify right side
    3,891.33x = 11,884,375.79
  5. Step 5: Solve for x
    x = 11,884,375.79/3,891.33
  6. Step 6: Final answer
    x = 3,054.07

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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.