Home / 5,191.36-7,164.11-2,833.56

Finding the Fourth Proportional to 5,191.36, 7,164.11 and 2,833.56

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Solution

The fourth proportional to 5,191.36, 7,164.11 and 2,833.56 is: 3,910.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,191.36 : 7,164.11 = 2,833.56 : x
  2. Step 2: Convert to fraction form
    5,191.36/7,164.11 = 2,833.56/x
  3. Step 3: Cross multiply
    5,191.36x = 7,164.11 × 2,833.56
  4. Step 4: Simplify right side
    5,191.36x = 20,299,942.62
  5. Step 5: Solve for x
    x = 20,299,942.62/5,191.36
  6. Step 6: Final answer
    x = 3,910.33

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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.