Home / 6,936.90-10,405-2,006.43

Finding the Fourth Proportional to 6,936.90, 10,405 and 2,006.43

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Solution

The fourth proportional to 6,936.90, 10,405 and 2,006.43 is: 3,009.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,936.90 : 10,405 = 2,006.43 : x
  2. Step 2: Convert to fraction form
    6,936.90/10,405 = 2,006.43/x
  3. Step 3: Cross multiply
    6,936.90x = 10,405 × 2,006.43
  4. Step 4: Simplify right side
    6,936.90x = 20,876,904.15
  5. Step 5: Solve for x
    x = 20,876,904.15/6,936.90
  6. Step 6: Final answer
    x = 3,009.54

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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.