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Finding the Third Proportional to 1,747.50 and 2,560.50

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Solution

The third proportional to 1,747.50 and 2,560.50 is: 3,751.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,747.50 : 2,560.50 = 2,560.50 : x
  2. Step 2: Convert to fraction form
    1,747.50/2,560.50 = 2,560.50/x
  3. Step 3: Cross multiply
    1,747.50x = 2,560.50 × 2,560.50
  4. Step 4: Simplify right side
    1,747.50x = 6,556,160.25
  5. Step 5: Solve for x
    x = 6,556,160.25/1,747.50
  6. Step 6: Final answer
    x = 3,751.74

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.