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Finding the Third Proportional to 4,787.75 and 6,808.75

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Solution

The third proportional to 4,787.75 and 6,808.75 is: 9,682.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,787.75 : 6,808.75 = 6,808.75 : x
  2. Step 2: Convert to fraction form
    4,787.75/6,808.75 = 6,808.75/x
  3. Step 3: Cross multiply
    4,787.75x = 6,808.75 × 6,808.75
  4. Step 4: Simplify right side
    4,787.75x = 46,359,076.56
  5. Step 5: Solve for x
    x = 46,359,076.56/4,787.75
  6. Step 6: Final answer
    x = 9,682.85

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Why These Related Problems?

These problems maintain the same ratio (1.42) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.