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Finding the Third Proportional to 675.84 and 1,394.72

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Solution

The third proportional to 675.84 and 1,394.72 is: 2,878.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    675.84 : 1,394.72 = 1,394.72 : x
  2. Step 2: Convert to fraction form
    675.84/1,394.72 = 1,394.72/x
  3. Step 3: Cross multiply
    675.84x = 1,394.72 × 1,394.72
  4. Step 4: Simplify right side
    675.84x = 1,945,240.39
  5. Step 5: Solve for x
    x = 1,945,240.39/675.84
  6. Step 6: Final answer
    x = 2,878.24

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Why These Related Problems?

These problems maintain the same ratio (2.06) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.