Home / 3,889.37-5,832.30-1,115.41

Finding the Fourth Proportional to 3,889.37, 5,832.30 and 1,115.41

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Solution

The fourth proportional to 3,889.37, 5,832.30 and 1,115.41 is: 1,672.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,889.37 : 5,832.30 = 1,115.41 : x
  2. Step 2: Convert to fraction form
    3,889.37/5,832.30 = 1,115.41/x
  3. Step 3: Cross multiply
    3,889.37x = 5,832.30 × 1,115.41
  4. Step 4: Simplify right side
    3,889.37x = 6,505,391.16
  5. Step 5: Solve for x
    x = 6,505,391.16/3,889.37
  6. Step 6: Final answer
    x = 1,672.61

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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.