Home / 7,161.10-10,742.68-2,231.24

Finding the Fourth Proportional to 7,161.10, 10,742.68 and 2,231.24

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Solution

The fourth proportional to 7,161.10, 10,742.68 and 2,231.24 is: 3,347.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,161.10 : 10,742.68 = 2,231.24 : x
  2. Step 2: Convert to fraction form
    7,161.10/10,742.68 = 2,231.24/x
  3. Step 3: Cross multiply
    7,161.10x = 10,742.68 × 2,231.24
  4. Step 4: Simplify right side
    7,161.10x = 23,969,497.32
  5. Step 5: Solve for x
    x = 23,969,497.32/7,161.10
  6. Step 6: Final answer
    x = 3,347.18

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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.