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Finding the Fourth Proportional to 2,833.50, 3,909.90 and 1,654.53

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Solution

The fourth proportional to 2,833.50, 3,909.90 and 1,654.53 is: 2,283.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,833.50 : 3,909.90 = 1,654.53 : x
  2. Step 2: Convert to fraction form
    2,833.50/3,909.90 = 1,654.53/x
  3. Step 3: Cross multiply
    2,833.50x = 3,909.90 × 1,654.53
  4. Step 4: Simplify right side
    2,833.50x = 6,469,046.85
  5. Step 5: Solve for x
    x = 6,469,046.85/2,833.50
  6. Step 6: Final answer
    x = 2,283.06

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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.