Home / 2,776.14-4,163.37-926.79

Finding the Fourth Proportional to 2,776.14, 4,163.37 and 926.79

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Solution

The fourth proportional to 2,776.14, 4,163.37 and 926.79 is: 1,389.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,776.14 : 4,163.37 = 926.79 : x
  2. Step 2: Convert to fraction form
    2,776.14/4,163.37 = 926.79/x
  3. Step 3: Cross multiply
    2,776.14x = 4,163.37 × 926.79
  4. Step 4: Simplify right side
    2,776.14x = 3,858,569.68
  5. Step 5: Solve for x
    x = 3,858,569.68/2,776.14
  6. Step 6: Final answer
    x = 1,389.90

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1.5x scale

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.