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Finding the Fourth Proportional to 6,733.08, 9,291.78 and 3,940.20

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Solution

The fourth proportional to 6,733.08, 9,291.78 and 3,940.20 is: 5,437.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,733.08 : 9,291.78 = 3,940.20 : x
  2. Step 2: Convert to fraction form
    6,733.08/9,291.78 = 3,940.20/x
  3. Step 3: Cross multiply
    6,733.08x = 9,291.78 × 3,940.20
  4. Step 4: Simplify right side
    6,733.08x = 36,611,471.56
  5. Step 5: Solve for x
    x = 36,611,471.56/6,733.08
  6. Step 6: Final answer
    x = 5,437.55

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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.