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Finding the Third Proportional to 785.25 and 1,787.63

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Solution

The third proportional to 785.25 and 1,787.63 is: 4,069.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    785.25 : 1,787.63 = 1,787.63 : x
  2. Step 2: Convert to fraction form
    785.25/1,787.63 = 1,787.63/x
  3. Step 3: Cross multiply
    785.25x = 1,787.63 × 1,787.63
  4. Step 4: Simplify right side
    785.25x = 3,195,603.14
  5. Step 5: Solve for x
    x = 3,195,603.14/785.25
  6. Step 6: Final answer
    x = 4,069.54

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Why These Related Problems?

These problems maintain the same ratio (2.28) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.