Home / 2,619.96-3,947.96-2,167.92

Finding the Fourth Proportional to 2,619.96, 3,947.96 and 2,167.92

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Solution

The fourth proportional to 2,619.96, 3,947.96 and 2,167.92 is: 3,266.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,619.96 : 3,947.96 = 2,167.92 : x
  2. Step 2: Convert to fraction form
    2,619.96/3,947.96 = 2,167.92/x
  3. Step 3: Cross multiply
    2,619.96x = 3,947.96 × 2,167.92
  4. Step 4: Simplify right side
    2,619.96x = 8,558,861.44
  5. Step 5: Solve for x
    x = 8,558,861.44/2,619.96
  6. Step 6: Final answer
    x = 3,266.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.