Home / 3,936.11-5,903.81-1,200.11

Finding the Fourth Proportional to 3,936.11, 5,903.81 and 1,200.11

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Solution

The fourth proportional to 3,936.11, 5,903.81 and 1,200.11 is: 1,800.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,936.11 : 5,903.81 = 1,200.11 : x
  2. Step 2: Convert to fraction form
    3,936.11/5,903.81 = 1,200.11/x
  3. Step 3: Cross multiply
    3,936.11x = 5,903.81 × 1,200.11
  4. Step 4: Simplify right side
    3,936.11x = 7,085,215.42
  5. Step 5: Solve for x
    x = 7,085,215.42/3,936.11
  6. Step 6: Final answer
    x = 1,800.06

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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.