Home / 3,723.54-5,138.15-2,231.16

Finding the Fourth Proportional to 3,723.54, 5,138.15 and 2,231.16

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Solution

The fourth proportional to 3,723.54, 5,138.15 and 2,231.16 is: 3,078.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,723.54 : 5,138.15 = 2,231.16 : x
  2. Step 2: Convert to fraction form
    3,723.54/5,138.15 = 2,231.16/x
  3. Step 3: Cross multiply
    3,723.54x = 5,138.15 × 2,231.16
  4. Step 4: Simplify right side
    3,723.54x = 11,464,023.60
  5. Step 5: Solve for x
    x = 11,464,023.60/3,723.54
  6. Step 6: Final answer
    x = 3,078.80

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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.