Home / 3,711.37-5,120.05-2,218.54

Finding the Fourth Proportional to 3,711.37, 5,120.05 and 2,218.54

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Solution

The fourth proportional to 3,711.37, 5,120.05 and 2,218.54 is: 3,060.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,711.37 : 5,120.05 = 2,218.54 : x
  2. Step 2: Convert to fraction form
    3,711.37/5,120.05 = 2,218.54/x
  3. Step 3: Cross multiply
    3,711.37x = 5,120.05 × 2,218.54
  4. Step 4: Simplify right side
    3,711.37x = 11,359,035.73
  5. Step 5: Solve for x
    x = 11,359,035.73/3,711.37
  6. Step 6: Final answer
    x = 3,060.60

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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.