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Finding the Fourth Proportional to 3,611.52, 4,987.44 and 3,084.48

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Solution

The fourth proportional to 3,611.52, 4,987.44 and 3,084.48 is: 4,259.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,611.52 : 4,987.44 = 3,084.48 : x
  2. Step 2: Convert to fraction form
    3,611.52/4,987.44 = 3,084.48/x
  3. Step 3: Cross multiply
    3,611.52x = 4,987.44 × 3,084.48
  4. Step 4: Simplify right side
    3,611.52x = 15,383,658.93
  5. Step 5: Solve for x
    x = 15,383,658.93/3,611.52
  6. Step 6: Final answer
    x = 4,259.61

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.