Home / 5,183.12-7,143.12-3,691.16

Finding the Fourth Proportional to 5,183.12, 7,143.12 and 3,691.16

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Solution

The fourth proportional to 5,183.12, 7,143.12 and 3,691.16 is: 5,086.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,183.12 : 7,143.12 = 3,691.16 : x
  2. Step 2: Convert to fraction form
    5,183.12/7,143.12 = 3,691.16/x
  3. Step 3: Cross multiply
    5,183.12x = 7,143.12 × 3,691.16
  4. Step 4: Simplify right side
    5,183.12x = 26,366,398.82
  5. Step 5: Solve for x
    x = 26,366,398.82/5,183.12
  6. Step 6: Final answer
    x = 5,086.97

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Half 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.