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Finding the Fourth Proportional to 2,028.06, 3,040.47 and 873

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Solution

The fourth proportional to 2,028.06, 3,040.47 and 873 is: 1,308.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,028.06 : 3,040.47 = 873 : x
  2. Step 2: Convert to fraction form
    2,028.06/3,040.47 = 873/x
  3. Step 3: Cross multiply
    2,028.06x = 3,040.47 × 873
  4. Step 4: Simplify right side
    2,028.06x = 2,654,330.31
  5. Step 5: Solve for x
    x = 2,654,330.31/2,028.06
  6. Step 6: Final answer
    x = 1,308.80

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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.