Home / 3,278.75-4,524.68-1,806.75

Finding the Fourth Proportional to 3,278.75, 4,524.68 and 1,806.75

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Solution

The fourth proportional to 3,278.75, 4,524.68 and 1,806.75 is: 2,493.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,278.75 : 4,524.68 = 1,806.75 : x
  2. Step 2: Convert to fraction form
    3,278.75/4,524.68 = 1,806.75/x
  3. Step 3: Cross multiply
    3,278.75x = 4,524.68 × 1,806.75
  4. Step 4: Simplify right side
    3,278.75x = 8,174,956.56
  5. Step 5: Solve for x
    x = 8,174,956.56/3,278.75
  6. Step 6: Final answer
    x = 2,493.32

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Half scale
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Double scale
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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.