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Finding the Third Proportional to 2,122 and 3,771.50

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Solution

The third proportional to 2,122 and 3,771.50 is: 6,703.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,122 : 3,771.50 = 3,771.50 : x
  2. Step 2: Convert to fraction form
    2,122/3,771.50 = 3,771.50/x
  3. Step 3: Cross multiply
    2,122x = 3,771.50 × 3,771.50
  4. Step 4: Simplify right side
    2,122x = 14,224,212.25
  5. Step 5: Solve for x
    x = 14,224,212.25/2,122
  6. Step 6: Final answer
    x = 6,703.21

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Why These Related Problems?

These problems maintain the same ratio (1.78) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.