Home / 2,334.38-3,221.46-1,286.46

Finding the Fourth Proportional to 2,334.38, 3,221.46 and 1,286.46

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Solution

The fourth proportional to 2,334.38, 3,221.46 and 1,286.46 is: 1,775.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,334.38 : 3,221.46 = 1,286.46 : x
  2. Step 2: Convert to fraction form
    2,334.38/3,221.46 = 1,286.46/x
  3. Step 3: Cross multiply
    2,334.38x = 3,221.46 × 1,286.46
  4. Step 4: Simplify right side
    2,334.38x = 4,144,279.43
  5. Step 5: Solve for x
    x = 4,144,279.43/2,334.38
  6. Step 6: Final answer
    x = 1,775.32

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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.