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Finding the Third Proportional to 803.50 and 1,731.25

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Solution

The third proportional to 803.50 and 1,731.25 is: 3,730.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    803.50 : 1,731.25 = 1,731.25 : x
  2. Step 2: Convert to fraction form
    803.50/1,731.25 = 1,731.25/x
  3. Step 3: Cross multiply
    803.50x = 1,731.25 × 1,731.25
  4. Step 4: Simplify right side
    803.50x = 2,997,226.56
  5. Step 5: Solve for x
    x = 2,997,226.56/803.50
  6. Step 6: Final answer
    x = 3,730.21

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.