Home / 7,940.12-11,905.92-2,673.38

Finding the Fourth Proportional to 7,940.12, 11,905.92 and 2,673.38

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Solution

The fourth proportional to 7,940.12, 11,905.92 and 2,673.38 is: 4,008.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,940.12 : 11,905.92 = 2,673.38 : x
  2. Step 2: Convert to fraction form
    7,940.12/11,905.92 = 2,673.38/x
  3. Step 3: Cross multiply
    7,940.12x = 11,905.92 × 2,673.38
  4. Step 4: Simplify right side
    7,940.12x = 31,829,048.41
  5. Step 5: Solve for x
    x = 31,829,048.41/7,940.12
  6. Step 6: Final answer
    x = 4,008.64

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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.