Home / 5,190.81-7,163.37-2,832.99

Finding the Fourth Proportional to 5,190.81, 7,163.37 and 2,832.99

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Solution

The fourth proportional to 5,190.81, 7,163.37 and 2,832.99 is: 3,909.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,190.81 : 7,163.37 = 2,832.99 : x
  2. Step 2: Convert to fraction form
    5,190.81/7,163.37 = 2,832.99/x
  3. Step 3: Cross multiply
    5,190.81x = 7,163.37 × 2,832.99
  4. Step 4: Simplify right side
    5,190.81x = 20,293,755.58
  5. Step 5: Solve for x
    x = 20,293,755.58/5,190.81
  6. Step 6: Final answer
    x = 3,909.55

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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.