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Finding the Third Proportional to 810.38 and 1,779.38

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Solution

The third proportional to 810.38 and 1,779.38 is: 3,907.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    810.38 : 1,779.38 = 1,779.38 : x
  2. Step 2: Convert to fraction form
    810.38/1,779.38 = 1,779.38/x
  3. Step 3: Cross multiply
    810.38x = 1,779.38 × 1,779.38
  4. Step 4: Simplify right side
    810.38x = 3,166,175.39
  5. Step 5: Solve for x
    x = 3,166,175.39/810.38
  6. Step 6: Final answer
    x = 3,907.05

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.