Home / 3,618.26-4,990.56-2,769.42

Finding the Fourth Proportional to 3,618.26, 4,990.56 and 2,769.42

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Solution

The fourth proportional to 3,618.26, 4,990.56 and 2,769.42 is: 3,819.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,618.26 : 4,990.56 = 2,769.42 : x
  2. Step 2: Convert to fraction form
    3,618.26/4,990.56 = 2,769.42/x
  3. Step 3: Cross multiply
    3,618.26x = 4,990.56 × 2,769.42
  4. Step 4: Simplify right side
    3,618.26x = 13,820,956.68
  5. Step 5: Solve for x
    x = 13,820,956.68/3,618.26
  6. Step 6: Final answer
    x = 3,819.79

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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.