Home / 3,971.88-5,481.44-2,293.60

Finding the Fourth Proportional to 3,971.88, 5,481.44 and 2,293.60

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Solution

The fourth proportional to 3,971.88, 5,481.44 and 2,293.60 is: 3,165.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,971.88 : 5,481.44 = 2,293.60 : x
  2. Step 2: Convert to fraction form
    3,971.88/5,481.44 = 2,293.60/x
  3. Step 3: Cross multiply
    3,971.88x = 5,481.44 × 2,293.60
  4. Step 4: Simplify right side
    3,971.88x = 12,572,230.78
  5. Step 5: Solve for x
    x = 12,572,230.78/3,971.88
  6. Step 6: Final answer
    x = 3,165.31

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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.