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Finding the Third Proportional to 3,004 and 3,139

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Solution

The third proportional to 3,004 and 3,139 is: 3,280.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,004 : 3,139 = 3,139 : x
  2. Step 2: Convert to fraction form
    3,004/3,139 = 3,139/x
  3. Step 3: Cross multiply
    3,004x = 3,139 × 3,139
  4. Step 4: Simplify right side
    3,004x = 9,853,321
  5. Step 5: Solve for x
    x = 9,853,321/3,004
  6. Step 6: Final answer
    x = 3,280.07

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Why These Related Problems?

These problems maintain the same ratio (1.04) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.