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Finding the Third Proportional to 3,406.78 and 4,998.66

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Solution

The third proportional to 3,406.78 and 4,998.66 is: 7,334.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,406.78 : 4,998.66 = 4,998.66 : x
  2. Step 2: Convert to fraction form
    3,406.78/4,998.66 = 4,998.66/x
  3. Step 3: Cross multiply
    3,406.78x = 4,998.66 × 4,998.66
  4. Step 4: Simplify right side
    3,406.78x = 24,986,564.31
  5. Step 5: Solve for x
    x = 24,986,564.31/3,406.78
  6. Step 6: Final answer
    x = 7,334.36

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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.