Home / 5,190.65-7,163.12-2,832.79

Finding the Fourth Proportional to 5,190.65, 7,163.12 and 2,832.79

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Solution

The fourth proportional to 5,190.65, 7,163.12 and 2,832.79 is: 3,909.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,190.65 : 7,163.12 = 2,832.79 : x
  2. Step 2: Convert to fraction form
    5,190.65/7,163.12 = 2,832.79/x
  3. Step 3: Cross multiply
    5,190.65x = 7,163.12 × 2,832.79
  4. Step 4: Simplify right side
    5,190.65x = 20,291,601.38
  5. Step 5: Solve for x
    x = 20,291,601.38/5,190.65
  6. Step 6: Final answer
    x = 3,909.26

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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.