Home / 3,937.79-5,433.81-2,168.96

Finding the Fourth Proportional to 3,937.79, 5,433.81 and 2,168.96

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Solution

The fourth proportional to 3,937.79, 5,433.81 and 2,168.96 is: 2,992.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,937.79 : 5,433.81 = 2,168.96 : x
  2. Step 2: Convert to fraction form
    3,937.79/5,433.81 = 2,168.96/x
  3. Step 3: Cross multiply
    3,937.79x = 5,433.81 × 2,168.96
  4. Step 4: Simplify right side
    3,937.79x = 11,785,716.54
  5. Step 5: Solve for x
    x = 11,785,716.54/3,937.79
  6. Step 6: Final answer
    x = 2,992.98

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1.5x scale

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.