Home / 2,220.85-3,331.20-759.97

Finding the Fourth Proportional to 2,220.85, 3,331.20 and 759.97

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Solution

The fourth proportional to 2,220.85, 3,331.20 and 759.97 is: 1,139.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,220.85 : 3,331.20 = 759.97 : x
  2. Step 2: Convert to fraction form
    2,220.85/3,331.20 = 759.97/x
  3. Step 3: Cross multiply
    2,220.85x = 3,331.20 × 759.97
  4. Step 4: Simplify right side
    2,220.85x = 2,531,612.06
  5. Step 5: Solve for x
    x = 2,531,612.06/2,220.85
  6. Step 6: Final answer
    x = 1,139.93

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1.5x scale

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.