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Finding the Fourth Proportional to 7,976.56, 11,969.88 and 3,359.56

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Solution

The fourth proportional to 7,976.56, 11,969.88 and 3,359.56 is: 5,041.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,976.56 : 11,969.88 = 3,359.56 : x
  2. Step 2: Convert to fraction form
    7,976.56/11,969.88 = 3,359.56/x
  3. Step 3: Cross multiply
    7,976.56x = 11,969.88 × 3,359.56
  4. Step 4: Simplify right side
    7,976.56x = 40,213,530.05
  5. Step 5: Solve for x
    x = 40,213,530.05/7,976.56
  6. Step 6: Final answer
    x = 5,041.46

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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.