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Finding the Fourth Proportional to 6,959.85, 9,604.56 and 3,976.62

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Solution

The fourth proportional to 6,959.85, 9,604.56 and 3,976.62 is: 5,487.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,959.85 : 9,604.56 = 3,976.62 : x
  2. Step 2: Convert to fraction form
    6,959.85/9,604.56 = 3,976.62/x
  3. Step 3: Cross multiply
    6,959.85x = 9,604.56 × 3,976.62
  4. Step 4: Simplify right side
    6,959.85x = 38,193,685.39
  5. Step 5: Solve for x
    x = 38,193,685.39/6,959.85
  6. Step 6: Final answer
    x = 5,487.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.