Home / 7,945.41-11,918.82-2,102.03

Finding the Fourth Proportional to 7,945.41, 11,918.82 and 2,102.03

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Solution

The fourth proportional to 7,945.41, 11,918.82 and 2,102.03 is: 3,153.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,945.41 : 11,918.82 = 2,102.03 : x
  2. Step 2: Convert to fraction form
    7,945.41/11,918.82 = 2,102.03/x
  3. Step 3: Cross multiply
    7,945.41x = 11,918.82 × 2,102.03
  4. Step 4: Simplify right side
    7,945.41x = 25,053,657.61
  5. Step 5: Solve for x
    x = 25,053,657.61/7,945.41
  6. Step 6: Final answer
    x = 3,153.22

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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.