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Finding the Third Proportional to 2,955 and 5,985

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Solution

The third proportional to 2,955 and 5,985 is: 12,121.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,955 : 5,985 = 5,985 : x
  2. Step 2: Convert to fraction form
    2,955/5,985 = 5,985/x
  3. Step 3: Cross multiply
    2,955x = 5,985 × 5,985
  4. Step 4: Simplify right side
    2,955x = 35,820,225
  5. Step 5: Solve for x
    x = 35,820,225/2,955
  6. Step 6: Final answer
    x = 12,121.90

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Why These Related Problems?

These problems maintain the same ratio (2.03) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.