Home / 3,971.95-5,481.18-2,203.57

Finding the Fourth Proportional to 3,971.95, 5,481.18 and 2,203.57

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Solution

The fourth proportional to 3,971.95, 5,481.18 and 2,203.57 is: 3,040.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,971.95 : 5,481.18 = 2,203.57 : x
  2. Step 2: Convert to fraction form
    3,971.95/5,481.18 = 2,203.57/x
  3. Step 3: Cross multiply
    3,971.95x = 5,481.18 × 2,203.57
  4. Step 4: Simplify right side
    3,971.95x = 12,078,163.81
  5. Step 5: Solve for x
    x = 12,078,163.81/3,971.95
  6. Step 6: Final answer
    x = 3,040.87

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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.