Home / 2,782.89-3,839.09-1,663.27

Finding the Fourth Proportional to 2,782.89, 3,839.09 and 1,663.27

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Solution

The fourth proportional to 2,782.89, 3,839.09 and 1,663.27 is: 2,294.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,782.89 : 3,839.09 = 1,663.27 : x
  2. Step 2: Convert to fraction form
    2,782.89/3,839.09 = 1,663.27/x
  3. Step 3: Cross multiply
    2,782.89x = 3,839.09 × 1,663.27
  4. Step 4: Simplify right side
    2,782.89x = 6,385,425.31
  5. Step 5: Solve for x
    x = 6,385,425.31/2,782.89
  6. Step 6: Final answer
    x = 2,294.53

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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.