Home / 4,871.82-6,725.24-3,105.75

Finding the Fourth Proportional to 4,871.82, 6,725.24 and 3,105.75

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Solution

The fourth proportional to 4,871.82, 6,725.24 and 3,105.75 is: 4,287.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,871.82 : 6,725.24 = 3,105.75 : x
  2. Step 2: Convert to fraction form
    4,871.82/6,725.24 = 3,105.75/x
  3. Step 3: Cross multiply
    4,871.82x = 6,725.24 × 3,105.75
  4. Step 4: Simplify right side
    4,871.82x = 20,886,864.98
  5. Step 5: Solve for x
    x = 20,886,864.98/4,871.82
  6. Step 6: Final answer
    x = 4,287.29

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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.