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Finding the Third Proportional to 762.56 and 1,646.44

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Solution

The third proportional to 762.56 and 1,646.44 is: 3,554.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    762.56 : 1,646.44 = 1,646.44 : x
  2. Step 2: Convert to fraction form
    762.56/1,646.44 = 1,646.44/x
  3. Step 3: Cross multiply
    762.56x = 1,646.44 × 1,646.44
  4. Step 4: Simplify right side
    762.56x = 2,710,756.44
  5. Step 5: Solve for x
    x = 2,710,756.44/762.56
  6. Step 6: Final answer
    x = 3,554.80

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.