Home / 2,679.45-3,694.07-2,199.12

Finding the Fourth Proportional to 2,679.45, 3,694.07 and 2,199.12

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Solution

The fourth proportional to 2,679.45, 3,694.07 and 2,199.12 is: 3,031.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,679.45 : 3,694.07 = 2,199.12 : x
  2. Step 2: Convert to fraction form
    2,679.45/3,694.07 = 2,199.12/x
  3. Step 3: Cross multiply
    2,679.45x = 3,694.07 × 2,199.12
  4. Step 4: Simplify right side
    2,679.45x = 8,123,694.86
  5. Step 5: Solve for x
    x = 8,123,694.86/2,679.45
  6. Step 6: Final answer
    x = 3,031.86

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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.