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Finding the Third Proportional to 3,017.50 and 6,399.50

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Solution

The third proportional to 3,017.50 and 6,399.50 is: 13,572.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,017.50 : 6,399.50 = 6,399.50 : x
  2. Step 2: Convert to fraction form
    3,017.50/6,399.50 = 6,399.50/x
  3. Step 3: Cross multiply
    3,017.50x = 6,399.50 × 6,399.50
  4. Step 4: Simplify right side
    3,017.50x = 40,953,600.25
  5. Step 5: Solve for x
    x = 40,953,600.25/3,017.50
  6. Step 6: Final answer
    x = 13,572.03

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.