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Finding the Fourth Proportional to 3,318.81, 4,974.77 and 1,651.83

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Solution

The fourth proportional to 3,318.81, 4,974.77 and 1,651.83 is: 2,476.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,318.81 : 4,974.77 = 1,651.83 : x
  2. Step 2: Convert to fraction form
    3,318.81/4,974.77 = 1,651.83/x
  3. Step 3: Cross multiply
    3,318.81x = 4,974.77 × 1,651.83
  4. Step 4: Simplify right side
    3,318.81x = 8,217,474.33
  5. Step 5: Solve for x
    x = 8,217,474.33/3,318.81
  6. Step 6: Final answer
    x = 2,476.03

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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.