Home / 1,839.73-2,539.39-1,131.79

Finding the Fourth Proportional to 1,839.73, 2,539.39 and 1,131.79

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Solution

The fourth proportional to 1,839.73, 2,539.39 and 1,131.79 is: 1,562.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,839.73 : 2,539.39 = 1,131.79 : x
  2. Step 2: Convert to fraction form
    1,839.73/2,539.39 = 1,131.79/x
  3. Step 3: Cross multiply
    1,839.73x = 2,539.39 × 1,131.79
  4. Step 4: Simplify right side
    1,839.73x = 2,874,056.21
  5. Step 5: Solve for x
    x = 2,874,056.21/1,839.73
  6. Step 6: Final answer
    x = 1,562.22

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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.