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Finding the Third Proportional to 845.44 and 1,820.92

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Solution

The third proportional to 845.44 and 1,820.92 is: 3,921.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    845.44 : 1,820.92 = 1,820.92 : x
  2. Step 2: Convert to fraction form
    845.44/1,820.92 = 1,820.92/x
  3. Step 3: Cross multiply
    845.44x = 1,820.92 × 1,820.92
  4. Step 4: Simplify right side
    845.44x = 3,315,742.25
  5. Step 5: Solve for x
    x = 3,315,742.25/845.44
  6. Step 6: Final answer
    x = 3,921.92

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.