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Finding the Fourth Proportional to 4,787.73, 7,179.16 and 2,189.25

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Solution

The fourth proportional to 4,787.73, 7,179.16 and 2,189.25 is: 3,282.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,787.73 : 7,179.16 = 2,189.25 : x
  2. Step 2: Convert to fraction form
    4,787.73/7,179.16 = 2,189.25/x
  3. Step 3: Cross multiply
    4,787.73x = 7,179.16 × 2,189.25
  4. Step 4: Simplify right side
    4,787.73x = 15,716,976.03
  5. Step 5: Solve for x
    x = 15,716,976.03/4,787.73
  6. Step 6: Final answer
    x = 3,282.76

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.