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Finding the Third Proportional to 986.63 and 1,425.38

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Solution

The third proportional to 986.63 and 1,425.38 is: 2,059.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    986.63 : 1,425.38 = 1,425.38 : x
  2. Step 2: Convert to fraction form
    986.63/1,425.38 = 1,425.38/x
  3. Step 3: Cross multiply
    986.63x = 1,425.38 × 1,425.38
  4. Step 4: Simplify right side
    986.63x = 2,031,693.89
  5. Step 5: Solve for x
    x = 2,031,693.89/986.63
  6. Step 6: Final answer
    x = 2,059.24

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Why These Related Problems?

These problems maintain the same ratio (1.44) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.