Home / 7,940.61-11,912.25-2,676.09

Finding the Fourth Proportional to 7,940.61, 11,912.25 and 2,676.09

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Solution

The fourth proportional to 7,940.61, 11,912.25 and 2,676.09 is: 4,014.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,940.61 : 11,912.25 = 2,676.09 : x
  2. Step 2: Convert to fraction form
    7,940.61/11,912.25 = 2,676.09/x
  3. Step 3: Cross multiply
    7,940.61x = 11,912.25 × 2,676.09
  4. Step 4: Simplify right side
    7,940.61x = 31,878,253.10
  5. Step 5: Solve for x
    x = 31,878,253.10/7,940.61
  6. Step 6: Final answer
    x = 4,014.58

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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.