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Finding the Third Proportional to 4,290.75 and 6,519.38

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Solution

The third proportional to 4,290.75 and 6,519.38 is: 9,905.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,290.75 : 6,519.38 = 6,519.38 : x
  2. Step 2: Convert to fraction form
    4,290.75/6,519.38 = 6,519.38/x
  3. Step 3: Cross multiply
    4,290.75x = 6,519.38 × 6,519.38
  4. Step 4: Simplify right side
    4,290.75x = 42,502,250.39
  5. Step 5: Solve for x
    x = 42,502,250.39/4,290.75
  6. Step 6: Final answer
    x = 9,905.55

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.