Home / 2,674.20-3,690.24-1,789.86

Finding the Fourth Proportional to 2,674.20, 3,690.24 and 1,789.86

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Solution

The fourth proportional to 2,674.20, 3,690.24 and 1,789.86 is: 2,469.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,674.20 : 3,690.24 = 1,789.86 : x
  2. Step 2: Convert to fraction form
    2,674.20/3,690.24 = 1,789.86/x
  3. Step 3: Cross multiply
    2,674.20x = 3,690.24 × 1,789.86
  4. Step 4: Simplify right side
    2,674.20x = 6,605,012.97
  5. Step 5: Solve for x
    x = 6,605,012.97/2,674.20
  6. Step 6: Final answer
    x = 2,469.90

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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.