Home / 2,179.22-3,265.94-1,140.11

Finding the Fourth Proportional to 2,179.22, 3,265.94 and 1,140.11

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Solution

The fourth proportional to 2,179.22, 3,265.94 and 1,140.11 is: 1,708.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,179.22 : 3,265.94 = 1,140.11 : x
  2. Step 2: Convert to fraction form
    2,179.22/3,265.94 = 1,140.11/x
  3. Step 3: Cross multiply
    2,179.22x = 3,265.94 × 1,140.11
  4. Step 4: Simplify right side
    2,179.22x = 3,723,530.85
  5. Step 5: Solve for x
    x = 3,723,530.85/2,179.22
  6. Step 6: Final answer
    x = 1,708.65

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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.