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Finding the Fourth Proportional to 2,026.44, 3,040.20 and 728.28

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Solution

The fourth proportional to 2,026.44, 3,040.20 and 728.28 is: 1,092.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,026.44 : 3,040.20 = 728.28 : x
  2. Step 2: Convert to fraction form
    2,026.44/3,040.20 = 728.28/x
  3. Step 3: Cross multiply
    2,026.44x = 3,040.20 × 728.28
  4. Step 4: Simplify right side
    2,026.44x = 2,214,116.86
  5. Step 5: Solve for x
    x = 2,214,116.86/2,026.44
  6. Step 6: Final answer
    x = 1,092.61

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