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Finding the Fourth Proportional to 3,046.28, 4,569.01 and 855.18

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Solution

The fourth proportional to 3,046.28, 4,569.01 and 855.18 is: 1,282.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,046.28 : 4,569.01 = 855.18 : x
  2. Step 2: Convert to fraction form
    3,046.28/4,569.01 = 855.18/x
  3. Step 3: Cross multiply
    3,046.28x = 4,569.01 × 855.18
  4. Step 4: Simplify right side
    3,046.28x = 3,907,321.70
  5. Step 5: Solve for x
    x = 3,907,321.70/3,046.28
  6. Step 6: Final answer
    x = 1,282.65

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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.