Home / 1,839.61-2,538.48-1,042.89

Finding the Fourth Proportional to 1,839.61, 2,538.48 and 1,042.89

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Solution

The fourth proportional to 1,839.61, 2,538.48 and 1,042.89 is: 1,439.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,839.61 : 2,538.48 = 1,042.89 : x
  2. Step 2: Convert to fraction form
    1,839.61/2,538.48 = 1,042.89/x
  3. Step 3: Cross multiply
    1,839.61x = 2,538.48 × 1,042.89
  4. Step 4: Simplify right side
    1,839.61x = 2,647,355.41
  5. Step 5: Solve for x
    x = 2,647,355.41/1,839.61
  6. Step 6: Final answer
    x = 1,439.09

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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.