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Finding the Fourth Proportional to 3,361.73, 5,036.81 and 2,622.80

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Solution

The fourth proportional to 3,361.73, 5,036.81 and 2,622.80 is: 3,929.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,361.73 : 5,036.81 = 2,622.80 : x
  2. Step 2: Convert to fraction form
    3,361.73/5,036.81 = 2,622.80/x
  3. Step 3: Cross multiply
    3,361.73x = 5,036.81 × 2,622.80
  4. Step 4: Simplify right side
    3,361.73x = 13,210,506.97
  5. Step 5: Solve for x
    x = 13,210,506.97/3,361.73
  6. Step 6: Final answer
    x = 3,929.68

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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.