Home / 2,220.82-3,328.50-1,232.80

Finding the Fourth Proportional to 2,220.82, 3,328.50 and 1,232.80

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Solution

The fourth proportional to 2,220.82, 3,328.50 and 1,232.80 is: 1,847.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,220.82 : 3,328.50 = 1,232.80 : x
  2. Step 2: Convert to fraction form
    2,220.82/3,328.50 = 1,232.80/x
  3. Step 3: Cross multiply
    2,220.82x = 3,328.50 × 1,232.80
  4. Step 4: Simplify right side
    2,220.82x = 4,103,374.80
  5. Step 5: Solve for x
    x = 4,103,374.80/2,220.82
  6. Step 6: Final answer
    x = 1,847.68

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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.