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Finding the Third Proportional to 737.50 and 1,615.50

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Solution

The third proportional to 737.50 and 1,615.50 is: 3,538.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    737.50 : 1,615.50 = 1,615.50 : x
  2. Step 2: Convert to fraction form
    737.50/1,615.50 = 1,615.50/x
  3. Step 3: Cross multiply
    737.50x = 1,615.50 × 1,615.50
  4. Step 4: Simplify right side
    737.50x = 2,609,840.25
  5. Step 5: Solve for x
    x = 2,609,840.25/737.50
  6. Step 6: Final answer
    x = 3,538.77

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.