Home / 2,152.56-3,226.92-1,226.78

Finding the Fourth Proportional to 2,152.56, 3,226.92 and 1,226.78

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Solution

The fourth proportional to 2,152.56, 3,226.92 and 1,226.78 is: 1,839.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,152.56 : 3,226.92 = 1,226.78 : x
  2. Step 2: Convert to fraction form
    2,152.56/3,226.92 = 1,226.78/x
  3. Step 3: Cross multiply
    2,152.56x = 3,226.92 × 1,226.78
  4. Step 4: Simplify right side
    2,152.56x = 3,958,720.92
  5. Step 5: Solve for x
    x = 3,958,720.92/2,152.56
  6. Step 6: Final answer
    x = 1,839.08

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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.