Home / 3,123.15-4,310.38-1,796.82

Finding the Fourth Proportional to 3,123.15, 4,310.38 and 1,796.82

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Solution

The fourth proportional to 3,123.15, 4,310.38 and 1,796.82 is: 2,479.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,123.15 : 4,310.38 = 1,796.82 : x
  2. Step 2: Convert to fraction form
    3,123.15/4,310.38 = 1,796.82/x
  3. Step 3: Cross multiply
    3,123.15x = 4,310.38 × 1,796.82
  4. Step 4: Simplify right side
    3,123.15x = 7,744,976.99
  5. Step 5: Solve for x
    x = 7,744,976.99/3,123.15
  6. Step 6: Final answer
    x = 2,479.86

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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.