Home / 3,131.75-4,702.24-1,747.79

Finding the Fourth Proportional to 3,131.75, 4,702.24 and 1,747.79

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Solution

The fourth proportional to 3,131.75, 4,702.24 and 1,747.79 is: 2,624.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,131.75 : 4,702.24 = 1,747.79 : x
  2. Step 2: Convert to fraction form
    3,131.75/4,702.24 = 1,747.79/x
  3. Step 3: Cross multiply
    3,131.75x = 4,702.24 × 1,747.79
  4. Step 4: Simplify right side
    3,131.75x = 8,218,528.05
  5. Step 5: Solve for x
    x = 8,218,528.05/3,131.75
  6. Step 6: Final answer
    x = 2,624.26

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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.