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Finding the Third Proportional to 1,339.03 and 3,109.64

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Solution

The third proportional to 1,339.03 and 3,109.64 is: 7,221.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,339.03 : 3,109.64 = 3,109.64 : x
  2. Step 2: Convert to fraction form
    1,339.03/3,109.64 = 3,109.64/x
  3. Step 3: Cross multiply
    1,339.03x = 3,109.64 × 3,109.64
  4. Step 4: Simplify right side
    1,339.03x = 9,669,864.82
  5. Step 5: Solve for x
    x = 9,669,864.82/1,339.03
  6. Step 6: Final answer
    x = 7,221.54

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Why These Related Problems?

These problems maintain the same ratio (2.32) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.