Home / 2,226.30-3,338.16-764.70

Finding the Fourth Proportional to 2,226.30, 3,338.16 and 764.70

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Solution

The fourth proportional to 2,226.30, 3,338.16 and 764.70 is: 1,146.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,226.30 : 3,338.16 = 764.70 : x
  2. Step 2: Convert to fraction form
    2,226.30/3,338.16 = 764.70/x
  3. Step 3: Cross multiply
    2,226.30x = 3,338.16 × 764.70
  4. Step 4: Simplify right side
    2,226.30x = 2,552,690.95
  5. Step 5: Solve for x
    x = 2,552,690.95/2,226.30
  6. Step 6: Final answer
    x = 1,146.61

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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.