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Finding the Third Proportional to 3,618.42 and 5,435.23

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Solution

The third proportional to 3,618.42 and 5,435.23 is: 8,164.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,618.42 : 5,435.23 = 5,435.23 : x
  2. Step 2: Convert to fraction form
    3,618.42/5,435.23 = 5,435.23/x
  3. Step 3: Cross multiply
    3,618.42x = 5,435.23 × 5,435.23
  4. Step 4: Simplify right side
    3,618.42x = 29,541,687.79
  5. Step 5: Solve for x
    x = 29,541,687.79/3,618.42
  6. Step 6: Final answer
    x = 8,164.25

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.