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Finding the Fourth Proportional to 5,787.62, 8,679.63 and 2,089.38

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Solution

The fourth proportional to 5,787.62, 8,679.63 and 2,089.38 is: 3,133.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,787.62 : 8,679.63 = 2,089.38 : x
  2. Step 2: Convert to fraction form
    5,787.62/8,679.63 = 2,089.38/x
  3. Step 3: Cross multiply
    5,787.62x = 8,679.63 × 2,089.38
  4. Step 4: Simplify right side
    5,787.62x = 18,135,045.33
  5. Step 5: Solve for x
    x = 18,135,045.33/5,787.62
  6. Step 6: Final answer
    x = 3,133.42

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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.