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Finding the Fourth Proportional to 3,971.94, 5,481.32 and 2,203.71

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Solution

The fourth proportional to 3,971.94, 5,481.32 and 2,203.71 is: 3,041.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,971.94 : 5,481.32 = 2,203.71 : x
  2. Step 2: Convert to fraction form
    3,971.94/5,481.32 = 2,203.71/x
  3. Step 3: Cross multiply
    3,971.94x = 5,481.32 × 2,203.71
  4. Step 4: Simplify right side
    3,971.94x = 12,079,228.68
  5. Step 5: Solve for x
    x = 12,079,228.68/3,971.94
  6. Step 6: Final answer
    x = 3,041.14

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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.