Home / 2,170.33-3,255.26-709.36

Finding the Fourth Proportional to 2,170.33, 3,255.26 and 709.36

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Solution

The fourth proportional to 2,170.33, 3,255.26 and 709.36 is: 1,063.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,170.33 : 3,255.26 = 709.36 : x
  2. Step 2: Convert to fraction form
    2,170.33/3,255.26 = 709.36/x
  3. Step 3: Cross multiply
    2,170.33x = 3,255.26 × 709.36
  4. Step 4: Simplify right side
    2,170.33x = 2,309,139.55
  5. Step 5: Solve for x
    x = 2,309,139.55/2,170.33
  6. Step 6: Final answer
    x = 1,063.96

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.