Home / 3,961.39-5,942.85-1,188.06

Finding the Fourth Proportional to 3,961.39, 5,942.85 and 1,188.06

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Solution

The fourth proportional to 3,961.39, 5,942.85 and 1,188.06 is: 1,782.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,961.39 : 5,942.85 = 1,188.06 : x
  2. Step 2: Convert to fraction form
    3,961.39/5,942.85 = 1,188.06/x
  3. Step 3: Cross multiply
    3,961.39x = 5,942.85 × 1,188.06
  4. Step 4: Simplify right side
    3,961.39x = 7,060,462.37
  5. Step 5: Solve for x
    x = 7,060,462.37/3,961.39
  6. Step 6: Final answer
    x = 1,782.32

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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.