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Finding the Fourth Proportional to 3,228.48, 4,455.81 and 1,902.99

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Solution

The fourth proportional to 3,228.48, 4,455.81 and 1,902.99 is: 2,626.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,228.48 : 4,455.81 = 1,902.99 : x
  2. Step 2: Convert to fraction form
    3,228.48/4,455.81 = 1,902.99/x
  3. Step 3: Cross multiply
    3,228.48x = 4,455.81 × 1,902.99
  4. Step 4: Simplify right side
    3,228.48x = 8,479,361.87
  5. Step 5: Solve for x
    x = 8,479,361.87/3,228.48
  6. Step 6: Final answer
    x = 2,626.43

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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.