Home / 3,971.85-5,481.47-2,203.41

Finding the Fourth Proportional to 3,971.85, 5,481.47 and 2,203.41

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Solution

The fourth proportional to 3,971.85, 5,481.47 and 2,203.41 is: 3,040.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,971.85 : 5,481.47 = 2,203.41 : x
  2. Step 2: Convert to fraction form
    3,971.85/5,481.47 = 2,203.41/x
  3. Step 3: Cross multiply
    3,971.85x = 5,481.47 × 2,203.41
  4. Step 4: Simplify right side
    3,971.85x = 12,077,925.81
  5. Step 5: Solve for x
    x = 12,077,925.81/3,971.85
  6. Step 6: Final answer
    x = 3,040.88

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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.