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Finding the Fourth Proportional to 3,936.36, 5,904.18 and 1,200.36

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Solution

The fourth proportional to 3,936.36, 5,904.18 and 1,200.36 is: 1,800.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,936.36 : 5,904.18 = 1,200.36 : x
  2. Step 2: Convert to fraction form
    3,936.36/5,904.18 = 1,200.36/x
  3. Step 3: Cross multiply
    3,936.36x = 5,904.18 × 1,200.36
  4. Step 4: Simplify right side
    3,936.36x = 7,087,141.50
  5. Step 5: Solve for x
    x = 7,087,141.50/3,936.36
  6. Step 6: Final answer
    x = 1,800.43

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1.5x scale

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.