Home / 3,989.06-5,505.82-2,589.38

Finding the Fourth Proportional to 3,989.06, 5,505.82 and 2,589.38

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Solution

The fourth proportional to 3,989.06, 5,505.82 and 2,589.38 is: 3,573.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,989.06 : 5,505.82 = 2,589.38 : x
  2. Step 2: Convert to fraction form
    3,989.06/5,505.82 = 2,589.38/x
  3. Step 3: Cross multiply
    3,989.06x = 5,505.82 × 2,589.38
  4. Step 4: Simplify right side
    3,989.06x = 14,256,660.19
  5. Step 5: Solve for x
    x = 14,256,660.19/3,989.06
  6. Step 6: Final answer
    x = 3,573.94

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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.