Home / 3,935.73-5,431.32-2,167.34

Finding the Fourth Proportional to 3,935.73, 5,431.32 and 2,167.34

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Solution

The fourth proportional to 3,935.73, 5,431.32 and 2,167.34 is: 2,990.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,935.73 : 5,431.32 = 2,167.34 : x
  2. Step 2: Convert to fraction form
    3,935.73/5,431.32 = 2,167.34/x
  3. Step 3: Cross multiply
    3,935.73x = 5,431.32 × 2,167.34
  4. Step 4: Simplify right side
    3,935.73x = 11,771,517.09
  5. Step 5: Solve for x
    x = 11,771,517.09/3,935.73
  6. Step 6: Final answer
    x = 2,990.94

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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.