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Finding the Fourth Proportional to 2,751.58, 3,797.49 and 1,912.06

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Solution

The fourth proportional to 2,751.58, 3,797.49 and 1,912.06 is: 2,638.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,751.58 : 3,797.49 = 1,912.06 : x
  2. Step 2: Convert to fraction form
    2,751.58/3,797.49 = 1,912.06/x
  3. Step 3: Cross multiply
    2,751.58x = 3,797.49 × 1,912.06
  4. Step 4: Simplify right side
    2,751.58x = 7,261,028.73
  5. Step 5: Solve for x
    x = 7,261,028.73/2,751.58
  6. Step 6: Final answer
    x = 2,638.86

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.