Home / 3,581.62-4,942.53-2,009.78

Finding the Fourth Proportional to 3,581.62, 4,942.53 and 2,009.78

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Solution

The fourth proportional to 3,581.62, 4,942.53 and 2,009.78 is: 2,773.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,581.62 : 4,942.53 = 2,009.78 : x
  2. Step 2: Convert to fraction form
    3,581.62/4,942.53 = 2,009.78/x
  3. Step 3: Cross multiply
    3,581.62x = 4,942.53 × 2,009.78
  4. Step 4: Simplify right side
    3,581.62x = 9,933,397.94
  5. Step 5: Solve for x
    x = 9,933,397.94/3,581.62
  6. Step 6: Final answer
    x = 2,773.44

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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.