Home / 3,935.92-5,431.51-2,167.52

Finding the Fourth Proportional to 3,935.92, 5,431.51 and 2,167.52

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Solution

The fourth proportional to 3,935.92, 5,431.51 and 2,167.52 is: 2,991.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,935.92 : 5,431.51 = 2,167.52 : x
  2. Step 2: Convert to fraction form
    3,935.92/5,431.51 = 2,167.52/x
  3. Step 3: Cross multiply
    3,935.92x = 5,431.51 × 2,167.52
  4. Step 4: Simplify right side
    3,935.92x = 11,772,908.11
  5. Step 5: Solve for x
    x = 11,772,908.11/3,935.92
  6. Step 6: Final answer
    x = 2,991.15

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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.