Home / 2,776.36-4,163.13-926.81

Finding the Fourth Proportional to 2,776.36, 4,163.13 and 926.81

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Solution

The fourth proportional to 2,776.36, 4,163.13 and 926.81 is: 1,389.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,776.36 : 4,163.13 = 926.81 : x
  2. Step 2: Convert to fraction form
    2,776.36/4,163.13 = 926.81/x
  3. Step 3: Cross multiply
    2,776.36x = 4,163.13 × 926.81
  4. Step 4: Simplify right side
    2,776.36x = 3,858,425.88
  5. Step 5: Solve for x
    x = 3,858,425.88/2,776.36
  6. Step 6: Final answer
    x = 1,389.74

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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.