Home / 3,321.70-4,583.99-1,905.62

Finding the Fourth Proportional to 3,321.70, 4,583.99 and 1,905.62

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Solution

The fourth proportional to 3,321.70, 4,583.99 and 1,905.62 is: 2,629.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,321.70 : 4,583.99 = 1,905.62 : x
  2. Step 2: Convert to fraction form
    3,321.70/4,583.99 = 1,905.62/x
  3. Step 3: Cross multiply
    3,321.70x = 4,583.99 × 1,905.62
  4. Step 4: Simplify right side
    3,321.70x = 8,735,324.87
  5. Step 5: Solve for x
    x = 8,735,324.87/3,321.70
  6. Step 6: Final answer
    x = 2,629.78

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Why These Related Problems?

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