Home / 5,183.25-7,778.21-5,164.12

Finding the Fourth Proportional to 5,183.25, 7,778.21 and 5,164.12

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Solution

The fourth proportional to 5,183.25, 7,778.21 and 5,164.12 is: 7,749.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,183.25 : 7,778.21 = 5,164.12 : x
  2. Step 2: Convert to fraction form
    5,183.25/7,778.21 = 5,164.12/x
  3. Step 3: Cross multiply
    5,183.25x = 7,778.21 × 5,164.12
  4. Step 4: Simplify right side
    5,183.25x = 40,167,609.83
  5. Step 5: Solve for x
    x = 40,167,609.83/5,183.25
  6. Step 6: Final answer
    x = 7,749.50

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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.