Home / 2,657.92-3,667.26-1,609.78

Finding the Fourth Proportional to 2,657.92, 3,667.26 and 1,609.78

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Solution

The fourth proportional to 2,657.92, 3,667.26 and 1,609.78 is: 2,221.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,657.92 : 3,667.26 = 1,609.78 : x
  2. Step 2: Convert to fraction form
    2,657.92/3,667.26 = 1,609.78/x
  3. Step 3: Cross multiply
    2,657.92x = 3,667.26 × 1,609.78
  4. Step 4: Simplify right side
    2,657.92x = 5,903,481.80
  5. Step 5: Solve for x
    x = 5,903,481.80/2,657.92
  6. Step 6: Final answer
    x = 2,221.09

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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.