Home / 3,977.62-5,968.34-1,639.33

Finding the Fourth Proportional to 3,977.62, 5,968.34 and 1,639.33

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Solution

The fourth proportional to 3,977.62, 5,968.34 and 1,639.33 is: 2,459.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,977.62 : 5,968.34 = 1,639.33 : x
  2. Step 2: Convert to fraction form
    3,977.62/5,968.34 = 1,639.33/x
  3. Step 3: Cross multiply
    3,977.62x = 5,968.34 × 1,639.33
  4. Step 4: Simplify right side
    3,977.62x = 9,784,078.81
  5. Step 5: Solve for x
    x = 9,784,078.81/3,977.62
  6. Step 6: Final answer
    x = 2,459.78

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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.