Home / 2,241.09-3,361.64-1,221.57

Finding the Fourth Proportional to 2,241.09, 3,361.64 and 1,221.57

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Solution

The fourth proportional to 2,241.09, 3,361.64 and 1,221.57 is: 1,832.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,241.09 : 3,361.64 = 1,221.57 : x
  2. Step 2: Convert to fraction form
    2,241.09/3,361.64 = 1,221.57/x
  3. Step 3: Cross multiply
    2,241.09x = 3,361.64 × 1,221.57
  4. Step 4: Simplify right side
    2,241.09x = 4,106,472.47
  5. Step 5: Solve for x
    x = 4,106,472.47/2,241.09
  6. Step 6: Final answer
    x = 1,832.36

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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.