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Finding the Third Proportional to 1,609.50 and 4,233.75

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Solution

The third proportional to 1,609.50 and 4,233.75 is: 11,136.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,609.50 : 4,233.75 = 4,233.75 : x
  2. Step 2: Convert to fraction form
    1,609.50/4,233.75 = 4,233.75/x
  3. Step 3: Cross multiply
    1,609.50x = 4,233.75 × 4,233.75
  4. Step 4: Simplify right side
    1,609.50x = 17,924,639.06
  5. Step 5: Solve for x
    x = 17,924,639.06/1,609.50
  6. Step 6: Final answer
    x = 11,136.77

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Why These Related Problems?

These problems maintain the same ratio (2.63) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.