Home / 7,092.90-10,631.79-3,390.03

Finding the Fourth Proportional to 7,092.90, 10,631.79 and 3,390.03

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Solution

The fourth proportional to 7,092.90, 10,631.79 and 3,390.03 is: 5,081.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,092.90 : 10,631.79 = 3,390.03 : x
  2. Step 2: Convert to fraction form
    7,092.90/10,631.79 = 3,390.03/x
  3. Step 3: Cross multiply
    7,092.90x = 10,631.79 × 3,390.03
  4. Step 4: Simplify right side
    7,092.90x = 36,042,087.05
  5. Step 5: Solve for x
    x = 36,042,087.05/7,092.90
  6. Step 6: Final answer
    x = 5,081.43

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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.