Home / 3,178.38-4,383.96-2,236.14

Finding the Fourth Proportional to 3,178.38, 4,383.96 and 2,236.14

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Solution

The fourth proportional to 3,178.38, 4,383.96 and 2,236.14 is: 3,084.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,178.38 : 4,383.96 = 2,236.14 : x
  2. Step 2: Convert to fraction form
    3,178.38/4,383.96 = 2,236.14/x
  3. Step 3: Cross multiply
    3,178.38x = 4,383.96 × 2,236.14
  4. Step 4: Simplify right side
    3,178.38x = 9,803,148.31
  5. Step 5: Solve for x
    x = 9,803,148.31/3,178.38
  6. Step 6: Final answer
    x = 3,084.32

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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.