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Finding the Fourth Proportional to 2,252.88, 3,378.11 and 791.51

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Solution

The fourth proportional to 2,252.88, 3,378.11 and 791.51 is: 1,186.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,252.88 : 3,378.11 = 791.51 : x
  2. Step 2: Convert to fraction form
    2,252.88/3,378.11 = 791.51/x
  3. Step 3: Cross multiply
    2,252.88x = 3,378.11 × 791.51
  4. Step 4: Simplify right side
    2,252.88x = 2,673,787.00
  5. Step 5: Solve for x
    x = 2,673,787.00/2,252.88
  6. Step 6: Final answer
    x = 1,186.83

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1.5x scale

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.