Home / 6,721.20-10,076.40-2,338.56

Finding the Fourth Proportional to 6,721.20, 10,076.40 and 2,338.56

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Solution

The fourth proportional to 6,721.20, 10,076.40 and 2,338.56 is: 3,505.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,721.20 : 10,076.40 = 2,338.56 : x
  2. Step 2: Convert to fraction form
    6,721.20/10,076.40 = 2,338.56/x
  3. Step 3: Cross multiply
    6,721.20x = 10,076.40 × 2,338.56
  4. Step 4: Simplify right side
    6,721.20x = 23,564,265.98
  5. Step 5: Solve for x
    x = 23,564,265.98/6,721.20
  6. Step 6: Final answer
    x = 3,505.96

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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.