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Finding the Fourth Proportional to 2,711.88, 4,087.87 and 2,553.32

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Solution

The fourth proportional to 2,711.88, 4,087.87 and 2,553.32 is: 3,848.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,711.88 : 4,087.87 = 2,553.32 : x
  2. Step 2: Convert to fraction form
    2,711.88/4,087.87 = 2,553.32/x
  3. Step 3: Cross multiply
    2,711.88x = 4,087.87 × 2,553.32
  4. Step 4: Simplify right side
    2,711.88x = 10,437,644.06
  5. Step 5: Solve for x
    x = 10,437,644.06/2,711.88
  6. Step 6: Final answer
    x = 3,848.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.