Home / 2,238.66-3,089.28-1,243.92

Finding the Fourth Proportional to 2,238.66, 3,089.28 and 1,243.92

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Solution

The fourth proportional to 2,238.66, 3,089.28 and 1,243.92 is: 1,716.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,238.66 : 3,089.28 = 1,243.92 : x
  2. Step 2: Convert to fraction form
    2,238.66/3,089.28 = 1,243.92/x
  3. Step 3: Cross multiply
    2,238.66x = 3,089.28 × 1,243.92
  4. Step 4: Simplify right side
    2,238.66x = 3,842,817.18
  5. Step 5: Solve for x
    x = 3,842,817.18/2,238.66
  6. Step 6: Final answer
    x = 1,716.57

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.