Home / 5,190.92-7,161.40-3,198.02

Finding the Fourth Proportional to 5,190.92, 7,161.40 and 3,198.02

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Solution

The fourth proportional to 5,190.92, 7,161.40 and 3,198.02 is: 4,411.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,190.92 : 7,161.40 = 3,198.02 : x
  2. Step 2: Convert to fraction form
    5,190.92/7,161.40 = 3,198.02/x
  3. Step 3: Cross multiply
    5,190.92x = 7,161.40 × 3,198.02
  4. Step 4: Simplify right side
    5,190.92x = 22,902,300.43
  5. Step 5: Solve for x
    x = 22,902,300.43/5,190.92
  6. Step 6: Final answer
    x = 4,411.99

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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.