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Finding the Fourth Proportional to 6,730.45, 9,287.94 and 3,935.95

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Solution

The fourth proportional to 6,730.45, 9,287.94 and 3,935.95 is: 5,431.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,730.45 : 9,287.94 = 3,935.95 : x
  2. Step 2: Convert to fraction form
    6,730.45/9,287.94 = 3,935.95/x
  3. Step 3: Cross multiply
    6,730.45x = 9,287.94 × 3,935.95
  4. Step 4: Simplify right side
    6,730.45x = 36,556,867.44
  5. Step 5: Solve for x
    x = 36,556,867.44/6,730.45
  6. Step 6: Final answer
    x = 5,431.56

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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.