Home / 5,189.99-7,162.20-2,832.12

Finding the Fourth Proportional to 5,189.99, 7,162.20 and 2,832.12

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Solution

The fourth proportional to 5,189.99, 7,162.20 and 2,832.12 is: 3,908.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,189.99 : 7,162.20 = 2,832.12 : x
  2. Step 2: Convert to fraction form
    5,189.99/7,162.20 = 2,832.12/x
  3. Step 3: Cross multiply
    5,189.99x = 7,162.20 × 2,832.12
  4. Step 4: Simplify right side
    5,189.99x = 20,284,209.86
  5. Step 5: Solve for x
    x = 20,284,209.86/5,189.99
  6. Step 6: Final answer
    x = 3,908.34

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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.