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Finding the Fourth Proportional to 6,613.46, 9,912.38 and 2,907.94

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Solution

The fourth proportional to 6,613.46, 9,912.38 and 2,907.94 is: 4,358.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,613.46 : 9,912.38 = 2,907.94 : x
  2. Step 2: Convert to fraction form
    6,613.46/9,912.38 = 2,907.94/x
  3. Step 3: Cross multiply
    6,613.46x = 9,912.38 × 2,907.94
  4. Step 4: Simplify right side
    6,613.46x = 28,824,604.15
  5. Step 5: Solve for x
    x = 28,824,604.15/6,613.46
  6. Step 6: Final answer
    x = 4,358.47

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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.