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Finding the Fourth Proportional to 3,725.66, 5,589.71 and 1,993.88

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Solution

The fourth proportional to 3,725.66, 5,589.71 and 1,993.88 is: 2,991.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,725.66 : 5,589.71 = 1,993.88 : x
  2. Step 2: Convert to fraction form
    3,725.66/5,589.71 = 1,993.88/x
  3. Step 3: Cross multiply
    3,725.66x = 5,589.71 × 1,993.88
  4. Step 4: Simplify right side
    3,725.66x = 11,145,173.06
  5. Step 5: Solve for x
    x = 11,145,173.06/3,725.66
  6. Step 6: Final answer
    x = 2,991.47

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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.