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Finding the Fourth Proportional to 2,028.35, 3,042.52 and 489.35

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Solution

The fourth proportional to 2,028.35, 3,042.52 and 489.35 is: 734.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,028.35 : 3,042.52 = 489.35 : x
  2. Step 2: Convert to fraction form
    2,028.35/3,042.52 = 489.35/x
  3. Step 3: Cross multiply
    2,028.35x = 3,042.52 × 489.35
  4. Step 4: Simplify right side
    2,028.35x = 1,488,842.56
  5. Step 5: Solve for x
    x = 1,488,842.56/2,028.35
  6. Step 6: Final answer
    x = 734.02

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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.