Home / 5,190.31-7,162.68-2,832.49

Finding the Fourth Proportional to 5,190.31, 7,162.68 and 2,832.49

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Solution

The fourth proportional to 5,190.31, 7,162.68 and 2,832.49 is: 3,908.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,190.31 : 7,162.68 = 2,832.49 : x
  2. Step 2: Convert to fraction form
    5,190.31/7,162.68 = 2,832.49/x
  3. Step 3: Cross multiply
    5,190.31x = 7,162.68 × 2,832.49
  4. Step 4: Simplify right side
    5,190.31x = 20,288,219.47
  5. Step 5: Solve for x
    x = 20,288,219.47/5,190.31
  6. Step 6: Final answer
    x = 3,908.86

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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.