Home / 2,311.11-3,468.75-1,079.22

Finding the Fourth Proportional to 2,311.11, 3,468.75 and 1,079.22

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Solution

The fourth proportional to 2,311.11, 3,468.75 and 1,079.22 is: 1,619.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,311.11 : 3,468.75 = 1,079.22 : x
  2. Step 2: Convert to fraction form
    2,311.11/3,468.75 = 1,079.22/x
  3. Step 3: Cross multiply
    2,311.11x = 3,468.75 × 1,079.22
  4. Step 4: Simplify right side
    2,311.11x = 3,743,544.38
  5. Step 5: Solve for x
    x = 3,743,544.38/2,311.11
  6. Step 6: Final answer
    x = 1,619.80

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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.