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Finding the Fourth Proportional to 1,738.44, 2,608.88 and 1,277.42

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Solution

The fourth proportional to 1,738.44, 2,608.88 and 1,277.42 is: 1,917.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,738.44 : 2,608.88 = 1,277.42 : x
  2. Step 2: Convert to fraction form
    1,738.44/2,608.88 = 1,277.42/x
  3. Step 3: Cross multiply
    1,738.44x = 2,608.88 × 1,277.42
  4. Step 4: Simplify right side
    1,738.44x = 3,332,616.06
  5. Step 5: Solve for x
    x = 3,332,616.06/1,738.44
  6. Step 6: Final answer
    x = 1,917.02

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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.