Home / 3,811.96-5,260.19-2,133.42

Finding the Fourth Proportional to 3,811.96, 5,260.19 and 2,133.42

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Solution

The fourth proportional to 3,811.96, 5,260.19 and 2,133.42 is: 2,943.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,811.96 : 5,260.19 = 2,133.42 : x
  2. Step 2: Convert to fraction form
    3,811.96/5,260.19 = 2,133.42/x
  3. Step 3: Cross multiply
    3,811.96x = 5,260.19 × 2,133.42
  4. Step 4: Simplify right side
    3,811.96x = 11,222,194.55
  5. Step 5: Solve for x
    x = 11,222,194.55/3,811.96
  6. Step 6: Final answer
    x = 2,943.94

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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.