Home / 1,241.14-1,849.81-1,189.21

Finding the Fourth Proportional to 1,241.14, 1,849.81 and 1,189.21

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Solution

The fourth proportional to 1,241.14, 1,849.81 and 1,189.21 is: 1,772.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,241.14 : 1,849.81 = 1,189.21 : x
  2. Step 2: Convert to fraction form
    1,241.14/1,849.81 = 1,189.21/x
  3. Step 3: Cross multiply
    1,241.14x = 1,849.81 × 1,189.21
  4. Step 4: Simplify right side
    1,241.14x = 2,199,797.36
  5. Step 5: Solve for x
    x = 2,199,797.36/1,241.14
  6. Step 6: Final answer
    x = 1,772.41

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.