Home / 6,940.20-10,402.56-3,243.36

Finding the Fourth Proportional to 6,940.20, 10,402.56 and 3,243.36

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Solution

The fourth proportional to 6,940.20, 10,402.56 and 3,243.36 is: 4,861.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,940.20 : 10,402.56 = 3,243.36 : x
  2. Step 2: Convert to fraction form
    6,940.20/10,402.56 = 3,243.36/x
  3. Step 3: Cross multiply
    6,940.20x = 10,402.56 × 3,243.36
  4. Step 4: Simplify right side
    6,940.20x = 33,739,247.00
  5. Step 5: Solve for x
    x = 33,739,247.00/6,940.20
  6. Step 6: Final answer
    x = 4,861.42

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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.