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Finding the Fourth Proportional to 3,993.91, 5,506.22 and 2,797.29

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Solution

The fourth proportional to 3,993.91, 5,506.22 and 2,797.29 is: 3,856.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,993.91 : 5,506.22 = 2,797.29 : x
  2. Step 2: Convert to fraction form
    3,993.91/5,506.22 = 2,797.29/x
  3. Step 3: Cross multiply
    3,993.91x = 5,506.22 × 2,797.29
  4. Step 4: Simplify right side
    3,993.91x = 15,402,466.61
  5. Step 5: Solve for x
    x = 15,402,466.61/3,993.91
  6. Step 6: Final answer
    x = 3,856.49

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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.