Home / 3,971.86-5,480.96-2,203.46

Finding the Fourth Proportional to 3,971.86, 5,480.96 and 2,203.46

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Solution

The fourth proportional to 3,971.86, 5,480.96 and 2,203.46 is: 3,040.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,971.86 : 5,480.96 = 2,203.46 : x
  2. Step 2: Convert to fraction form
    3,971.86/5,480.96 = 2,203.46/x
  3. Step 3: Cross multiply
    3,971.86x = 5,480.96 × 2,203.46
  4. Step 4: Simplify right side
    3,971.86x = 12,077,076.12
  5. Step 5: Solve for x
    x = 12,077,076.12/3,971.86
  6. Step 6: Final answer
    x = 3,040.66

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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.