Home / 2,240.40-3,361.28-1,200.90

Finding the Fourth Proportional to 2,240.40, 3,361.28 and 1,200.90

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Solution

The fourth proportional to 2,240.40, 3,361.28 and 1,200.90 is: 1,801.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,240.40 : 3,361.28 = 1,200.90 : x
  2. Step 2: Convert to fraction form
    2,240.40/3,361.28 = 1,200.90/x
  3. Step 3: Cross multiply
    2,240.40x = 3,361.28 × 1,200.90
  4. Step 4: Simplify right side
    2,240.40x = 4,036,555.15
  5. Step 5: Solve for x
    x = 4,036,555.15/2,240.40
  6. Step 6: Final answer
    x = 1,801.71

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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.