Home / 7,131.20-10,697.94-2,199.68

Finding the Fourth Proportional to 7,131.20, 10,697.94 and 2,199.68

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Solution

The fourth proportional to 7,131.20, 10,697.94 and 2,199.68 is: 3,299.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,131.20 : 10,697.94 = 2,199.68 : x
  2. Step 2: Convert to fraction form
    7,131.20/10,697.94 = 2,199.68/x
  3. Step 3: Cross multiply
    7,131.20x = 10,697.94 × 2,199.68
  4. Step 4: Simplify right side
    7,131.20x = 23,532,044.66
  5. Step 5: Solve for x
    x = 23,532,044.66/7,131.20
  6. Step 6: Final answer
    x = 3,299.87

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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.