Home / 2,750.82-4,121.42-2,291.55

Finding the Fourth Proportional to 2,750.82, 4,121.42 and 2,291.55

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Solution

The fourth proportional to 2,750.82, 4,121.42 and 2,291.55 is: 3,433.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,750.82 : 4,121.42 = 2,291.55 : x
  2. Step 2: Convert to fraction form
    2,750.82/4,121.42 = 2,291.55/x
  3. Step 3: Cross multiply
    2,750.82x = 4,121.42 × 2,291.55
  4. Step 4: Simplify right side
    2,750.82x = 9,444,425.12
  5. Step 5: Solve for x
    x = 9,444,425.12/2,750.82
  6. Step 6: Final answer
    x = 3,433.32

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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.