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Finding the Fourth Proportional to 3,993.71, 6,012.12 and 3,591.84

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Solution

The fourth proportional to 3,993.71, 6,012.12 and 3,591.84 is: 5,407.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,993.71 : 6,012.12 = 3,591.84 : x
  2. Step 2: Convert to fraction form
    3,993.71/6,012.12 = 3,591.84/x
  3. Step 3: Cross multiply
    3,993.71x = 6,012.12 × 3,591.84
  4. Step 4: Simplify right side
    3,993.71x = 21,594,609.12
  5. Step 5: Solve for x
    x = 21,594,609.12/3,993.71
  6. Step 6: Final answer
    x = 5,407.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.