Home / 4,191.36-5,789.84-3,896.16

Finding the Fourth Proportional to 4,191.36, 5,789.84 and 3,896.16

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Solution

The fourth proportional to 4,191.36, 5,789.84 and 3,896.16 is: 5,382.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,191.36 : 5,789.84 = 3,896.16 : x
  2. Step 2: Convert to fraction form
    4,191.36/5,789.84 = 3,896.16/x
  3. Step 3: Cross multiply
    4,191.36x = 5,789.84 × 3,896.16
  4. Step 4: Simplify right side
    4,191.36x = 22,558,143.01
  5. Step 5: Solve for x
    x = 22,558,143.01/4,191.36
  6. Step 6: Final answer
    x = 5,382.06

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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.