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Finding the Third Proportional to 2,070 and 3,687.75

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Solution

The third proportional to 2,070 and 3,687.75 is: 6,569.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,070 : 3,687.75 = 3,687.75 : x
  2. Step 2: Convert to fraction form
    2,070/3,687.75 = 3,687.75/x
  3. Step 3: Cross multiply
    2,070x = 3,687.75 × 3,687.75
  4. Step 4: Simplify right side
    2,070x = 13,599,500.06
  5. Step 5: Solve for x
    x = 13,599,500.06/2,070
  6. Step 6: Final answer
    x = 6,569.81

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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.