Home / 2,679.33-3,992.70-2,591.25

Finding the Fourth Proportional to 2,679.33, 3,992.70 and 2,591.25

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Solution

The fourth proportional to 2,679.33, 3,992.70 and 2,591.25 is: 3,861.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,679.33 : 3,992.70 = 2,591.25 : x
  2. Step 2: Convert to fraction form
    2,679.33/3,992.70 = 2,591.25/x
  3. Step 3: Cross multiply
    2,679.33x = 3,992.70 × 2,591.25
  4. Step 4: Simplify right side
    2,679.33x = 10,346,083.88
  5. Step 5: Solve for x
    x = 10,346,083.88/2,679.33
  6. Step 6: Final answer
    x = 3,861.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.