Home / 2,240.84-3,361.26-1,221.32

Finding the Fourth Proportional to 2,240.84, 3,361.26 and 1,221.32

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Solution

The fourth proportional to 2,240.84, 3,361.26 and 1,221.32 is: 1,831.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,240.84 : 3,361.26 = 1,221.32 : x
  2. Step 2: Convert to fraction form
    2,240.84/3,361.26 = 1,221.32/x
  3. Step 3: Cross multiply
    2,240.84x = 3,361.26 × 1,221.32
  4. Step 4: Simplify right side
    2,240.84x = 4,105,174.06
  5. Step 5: Solve for x
    x = 4,105,174.06/2,240.84
  6. Step 6: Final answer
    x = 1,831.98

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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.