Home / 7,789.04-11,676.61-2,857.53

Finding the Fourth Proportional to 7,789.04, 11,676.61 and 2,857.53

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Solution

The fourth proportional to 7,789.04, 11,676.61 and 2,857.53 is: 4,283.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,789.04 : 11,676.61 = 2,857.53 : x
  2. Step 2: Convert to fraction form
    7,789.04/11,676.61 = 2,857.53/x
  3. Step 3: Cross multiply
    7,789.04x = 11,676.61 × 2,857.53
  4. Step 4: Simplify right side
    7,789.04x = 33,366,310.73
  5. Step 5: Solve for x
    x = 33,366,310.73/7,789.04
  6. Step 6: Final answer
    x = 4,283.75

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.