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Finding the Fourth Proportional to 2,224.75, 3,329.87 and 1,639.51

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Solution

The fourth proportional to 2,224.75, 3,329.87 and 1,639.51 is: 2,453.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,224.75 : 3,329.87 = 1,639.51 : x
  2. Step 2: Convert to fraction form
    2,224.75/3,329.87 = 1,639.51/x
  3. Step 3: Cross multiply
    2,224.75x = 3,329.87 × 1,639.51
  4. Step 4: Simplify right side
    2,224.75x = 5,459,355.16
  5. Step 5: Solve for x
    x = 5,459,355.16/2,224.75
  6. Step 6: Final answer
    x = 2,453.92

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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.