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Finding the Third Proportional to 577.31 and 1,260.19

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Solution

The third proportional to 577.31 and 1,260.19 is: 2,750.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    577.31 : 1,260.19 = 1,260.19 : x
  2. Step 2: Convert to fraction form
    577.31/1,260.19 = 1,260.19/x
  3. Step 3: Cross multiply
    577.31x = 1,260.19 × 1,260.19
  4. Step 4: Simplify right side
    577.31x = 1,588,072.54
  5. Step 5: Solve for x
    x = 1,588,072.54/577.31
  6. Step 6: Final answer
    x = 2,750.80

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.