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Finding the Fourth Proportional to 2,616.87, 3,924.09 and 1,521.54

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Solution

The fourth proportional to 2,616.87, 3,924.09 and 1,521.54 is: 2,281.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,616.87 : 3,924.09 = 1,521.54 : x
  2. Step 2: Convert to fraction form
    2,616.87/3,924.09 = 1,521.54/x
  3. Step 3: Cross multiply
    2,616.87x = 3,924.09 × 1,521.54
  4. Step 4: Simplify right side
    2,616.87x = 5,970,659.90
  5. Step 5: Solve for x
    x = 5,970,659.90/2,616.87
  6. Step 6: Final answer
    x = 2,281.60

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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.