Home / 7,161.72-10,742.56-2,231.37

Finding the Fourth Proportional to 7,161.72, 10,742.56 and 2,231.37

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Solution

The fourth proportional to 7,161.72, 10,742.56 and 2,231.37 is: 3,347.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,161.72 : 10,742.56 = 2,231.37 : x
  2. Step 2: Convert to fraction form
    7,161.72/10,742.56 = 2,231.37/x
  3. Step 3: Cross multiply
    7,161.72x = 10,742.56 × 2,231.37
  4. Step 4: Simplify right side
    7,161.72x = 23,970,578.06
  5. Step 5: Solve for x
    x = 23,970,578.06/7,161.72
  6. Step 6: Final answer
    x = 3,347.04

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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.