Home / 2,318.80-3,481.98-2,201.86

Finding the Fourth Proportional to 2,318.80, 3,481.98 and 2,201.86

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Solution

The fourth proportional to 2,318.80, 3,481.98 and 2,201.86 is: 3,306.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,318.80 : 3,481.98 = 2,201.86 : x
  2. Step 2: Convert to fraction form
    2,318.80/3,481.98 = 2,201.86/x
  3. Step 3: Cross multiply
    2,318.80x = 3,481.98 × 2,201.86
  4. Step 4: Simplify right side
    2,318.80x = 7,666,832.48
  5. Step 5: Solve for x
    x = 7,666,832.48/2,318.80
  6. Step 6: Final answer
    x = 3,306.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.