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Finding the Fourth Proportional to 3,991.83, 5,988.17 and 1,528.73

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Solution

The fourth proportional to 3,991.83, 5,988.17 and 1,528.73 is: 2,293.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,991.83 : 5,988.17 = 1,528.73 : x
  2. Step 2: Convert to fraction form
    3,991.83/5,988.17 = 1,528.73/x
  3. Step 3: Cross multiply
    3,991.83x = 5,988.17 × 1,528.73
  4. Step 4: Simplify right side
    3,991.83x = 9,154,257.54
  5. Step 5: Solve for x
    x = 9,154,257.54/3,991.83
  6. Step 6: Final answer
    x = 2,293.25

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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.