Home / 5,105.25-7,045.11-2,867.37

Finding the Fourth Proportional to 5,105.25, 7,045.11 and 2,867.37

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Solution

The fourth proportional to 5,105.25, 7,045.11 and 2,867.37 is: 3,956.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,105.25 : 7,045.11 = 2,867.37 : x
  2. Step 2: Convert to fraction form
    5,105.25/7,045.11 = 2,867.37/x
  3. Step 3: Cross multiply
    5,105.25x = 7,045.11 × 2,867.37
  4. Step 4: Simplify right side
    5,105.25x = 20,200,937.06
  5. Step 5: Solve for x
    x = 20,200,937.06/5,105.25
  6. Step 6: Final answer
    x = 3,956.89

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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.