Home / 6,991.20-10,486.92-1,797.12

Finding the Fourth Proportional to 6,991.20, 10,486.92 and 1,797.12

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Solution

The fourth proportional to 6,991.20, 10,486.92 and 1,797.12 is: 2,695.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,991.20 : 10,486.92 = 1,797.12 : x
  2. Step 2: Convert to fraction form
    6,991.20/10,486.92 = 1,797.12/x
  3. Step 3: Cross multiply
    6,991.20x = 10,486.92 × 1,797.12
  4. Step 4: Simplify right side
    6,991.20x = 18,846,253.67
  5. Step 5: Solve for x
    x = 18,846,253.67/6,991.20
  6. Step 6: Final answer
    x = 2,695.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.