Home / 5,286.94-7,930.43-1,589.21

Finding the Fourth Proportional to 5,286.94, 7,930.43 and 1,589.21

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Solution

The fourth proportional to 5,286.94, 7,930.43 and 1,589.21 is: 2,383.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,286.94 : 7,930.43 = 1,589.21 : x
  2. Step 2: Convert to fraction form
    5,286.94/7,930.43 = 1,589.21/x
  3. Step 3: Cross multiply
    5,286.94x = 7,930.43 × 1,589.21
  4. Step 4: Simplify right side
    5,286.94x = 12,603,118.66
  5. Step 5: Solve for x
    x = 12,603,118.66/5,286.94
  6. Step 6: Final answer
    x = 2,383.82

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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.