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Finding the Fourth Proportional to 3,977.44, 5,486.16 and 2,321.44

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Solution

The fourth proportional to 3,977.44, 5,486.16 and 2,321.44 is: 3,202.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,977.44 : 5,486.16 = 2,321.44 : x
  2. Step 2: Convert to fraction form
    3,977.44/5,486.16 = 2,321.44/x
  3. Step 3: Cross multiply
    3,977.44x = 5,486.16 × 2,321.44
  4. Step 4: Simplify right side
    3,977.44x = 12,735,791.27
  5. Step 5: Solve for x
    x = 12,735,791.27/3,977.44
  6. Step 6: Final answer
    x = 3,202.01

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1.5x scale

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.