Home / 3,980.46-5,976.09-2,744.81

Finding the Fourth Proportional to 3,980.46, 5,976.09 and 2,744.81

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Solution

The fourth proportional to 3,980.46, 5,976.09 and 2,744.81 is: 4,120.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,980.46 : 5,976.09 = 2,744.81 : x
  2. Step 2: Convert to fraction form
    3,980.46/5,976.09 = 2,744.81/x
  3. Step 3: Cross multiply
    3,980.46x = 5,976.09 × 2,744.81
  4. Step 4: Simplify right side
    3,980.46x = 16,403,201.71
  5. Step 5: Solve for x
    x = 16,403,201.71/3,980.46
  6. Step 6: Final answer
    x = 4,120.93

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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.