Home / 3,976.92-5,965.32-1,666.80

Finding the Fourth Proportional to 3,976.92, 5,965.32 and 1,666.80

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Solution

The fourth proportional to 3,976.92, 5,965.32 and 1,666.80 is: 2,500.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,976.92 : 5,965.32 = 1,666.80 : x
  2. Step 2: Convert to fraction form
    3,976.92/5,965.32 = 1,666.80/x
  3. Step 3: Cross multiply
    3,976.92x = 5,965.32 × 1,666.80
  4. Step 4: Simplify right side
    3,976.92x = 9,942,995.38
  5. Step 5: Solve for x
    x = 9,942,995.38/3,976.92
  6. Step 6: Final answer
    x = 2,500.17

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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.