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Finding the Fourth Proportional to 2,647.52, 3,963.05 and 1,954.97

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Solution

The fourth proportional to 2,647.52, 3,963.05 and 1,954.97 is: 2,926.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,647.52 : 3,963.05 = 1,954.97 : x
  2. Step 2: Convert to fraction form
    2,647.52/3,963.05 = 1,954.97/x
  3. Step 3: Cross multiply
    2,647.52x = 3,963.05 × 1,954.97
  4. Step 4: Simplify right side
    2,647.52x = 7,747,628.93
  5. Step 5: Solve for x
    x = 7,747,628.93/2,647.52
  6. Step 6: Final answer
    x = 2,926.38

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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.