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Finding the Fourth Proportional to 4,787.88, 7,182.36 and 2,190.48

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Solution

The fourth proportional to 4,787.88, 7,182.36 and 2,190.48 is: 3,285.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,787.88 : 7,182.36 = 2,190.48 : x
  2. Step 2: Convert to fraction form
    4,787.88/7,182.36 = 2,190.48/x
  3. Step 3: Cross multiply
    4,787.88x = 7,182.36 × 2,190.48
  4. Step 4: Simplify right side
    4,787.88x = 15,732,815.93
  5. Step 5: Solve for x
    x = 15,732,815.93/4,787.88
  6. Step 6: Final answer
    x = 3,285.97

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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.