Home / 5,190.57-7,162.88-2,832.75

Finding the Fourth Proportional to 5,190.57, 7,162.88 and 2,832.75

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Solution

The fourth proportional to 5,190.57, 7,162.88 and 2,832.75 is: 3,909.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,190.57 : 7,162.88 = 2,832.75 : x
  2. Step 2: Convert to fraction form
    5,190.57/7,162.88 = 2,832.75/x
  3. Step 3: Cross multiply
    5,190.57x = 7,162.88 × 2,832.75
  4. Step 4: Simplify right side
    5,190.57x = 20,290,634.16
  5. Step 5: Solve for x
    x = 20,290,634.16/5,190.57
  6. Step 6: Final answer
    x = 3,909.13

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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.