Home / 3,935.13-5,906.33-1,988.70

Finding the Fourth Proportional to 3,935.13, 5,906.33 and 1,988.70

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Solution

The fourth proportional to 3,935.13, 5,906.33 and 1,988.70 is: 2,984.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,935.13 : 5,906.33 = 1,988.70 : x
  2. Step 2: Convert to fraction form
    3,935.13/5,906.33 = 1,988.70/x
  3. Step 3: Cross multiply
    3,935.13x = 5,906.33 × 1,988.70
  4. Step 4: Simplify right side
    3,935.13x = 11,745,908.53
  5. Step 5: Solve for x
    x = 11,745,908.53/3,935.13
  6. Step 6: Final answer
    x = 2,984.88

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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.