Home / 5,190.08-7,162.32-2,832.20

Finding the Fourth Proportional to 5,190.08, 7,162.32 and 2,832.20

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Solution

The fourth proportional to 5,190.08, 7,162.32 and 2,832.20 is: 3,908.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,190.08 : 7,162.32 = 2,832.20 : x
  2. Step 2: Convert to fraction form
    5,190.08/7,162.32 = 2,832.20/x
  3. Step 3: Cross multiply
    5,190.08x = 7,162.32 × 2,832.20
  4. Step 4: Simplify right side
    5,190.08x = 20,285,122.70
  5. Step 5: Solve for x
    x = 20,285,122.70/5,190.08
  6. Step 6: Final answer
    x = 3,908.44

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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.