Home / 3,977.21-5,487.94-2,383.49

Finding the Fourth Proportional to 3,977.21, 5,487.94 and 2,383.49

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Solution

The fourth proportional to 3,977.21, 5,487.94 and 2,383.49 is: 3,288.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,977.21 : 5,487.94 = 2,383.49 : x
  2. Step 2: Convert to fraction form
    3,977.21/5,487.94 = 2,383.49/x
  3. Step 3: Cross multiply
    3,977.21x = 5,487.94 × 2,383.49
  4. Step 4: Simplify right side
    3,977.21x = 13,080,438.19
  5. Step 5: Solve for x
    x = 13,080,438.19/3,977.21
  6. Step 6: Final answer
    x = 3,288.85

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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.