Home / 3,935.73-5,431.29-2,931.94

Finding the Fourth Proportional to 3,935.73, 5,431.29 and 2,931.94

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Solution

The fourth proportional to 3,935.73, 5,431.29 and 2,931.94 is: 4,046.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,935.73 : 5,431.29 = 2,931.94 : x
  2. Step 2: Convert to fraction form
    3,935.73/5,431.29 = 2,931.94/x
  3. Step 3: Cross multiply
    3,935.73x = 5,431.29 × 2,931.94
  4. Step 4: Simplify right side
    3,935.73x = 15,924,212.20
  5. Step 5: Solve for x
    x = 15,924,212.20/3,935.73
  6. Step 6: Final answer
    x = 4,046.06

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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.