Home / 3,081.80-4,624.92-1,207.96

Finding the Fourth Proportional to 3,081.80, 4,624.92 and 1,207.96

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Solution

The fourth proportional to 3,081.80, 4,624.92 and 1,207.96 is: 1,812.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,081.80 : 4,624.92 = 1,207.96 : x
  2. Step 2: Convert to fraction form
    3,081.80/4,624.92 = 1,207.96/x
  3. Step 3: Cross multiply
    3,081.80x = 4,624.92 × 1,207.96
  4. Step 4: Simplify right side
    3,081.80x = 5,586,718.36
  5. Step 5: Solve for x
    x = 5,586,718.36/3,081.80
  6. Step 6: Final answer
    x = 1,812.81

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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.