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Finding the Fourth Proportional to 3,993.88, 5,990.28 and 2,261.56

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Solution

The fourth proportional to 3,993.88, 5,990.28 and 2,261.56 is: 3,392.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,993.88 : 5,990.28 = 2,261.56 : x
  2. Step 2: Convert to fraction form
    3,993.88/5,990.28 = 2,261.56/x
  3. Step 3: Cross multiply
    3,993.88x = 5,990.28 × 2,261.56
  4. Step 4: Simplify right side
    3,993.88x = 13,547,377.64
  5. Step 5: Solve for x
    x = 13,547,377.64/3,993.88
  6. Step 6: Final answer
    x = 3,392.03

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1.5x scale

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.