Home / 2,226.09-3,338.46-764.91

Finding the Fourth Proportional to 2,226.09, 3,338.46 and 764.91

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Solution

The fourth proportional to 2,226.09, 3,338.46 and 764.91 is: 1,147.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,226.09 : 3,338.46 = 764.91 : x
  2. Step 2: Convert to fraction form
    2,226.09/3,338.46 = 764.91/x
  3. Step 3: Cross multiply
    2,226.09x = 3,338.46 × 764.91
  4. Step 4: Simplify right side
    2,226.09x = 2,553,621.44
  5. Step 5: Solve for x
    x = 2,553,621.44/2,226.09
  6. Step 6: Final answer
    x = 1,147.13

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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.