Home / 3,711.80-5,119.26-2,664.44

Finding the Fourth Proportional to 3,711.80, 5,119.26 and 2,664.44

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Solution

The fourth proportional to 3,711.80, 5,119.26 and 2,664.44 is: 3,674.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,711.80 : 5,119.26 = 2,664.44 : x
  2. Step 2: Convert to fraction form
    3,711.80/5,119.26 = 2,664.44/x
  3. Step 3: Cross multiply
    3,711.80x = 5,119.26 × 2,664.44
  4. Step 4: Simplify right side
    3,711.80x = 13,639,961.11
  5. Step 5: Solve for x
    x = 13,639,961.11/3,711.80
  6. Step 6: Final answer
    x = 3,674.76

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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.