Home / 3,961.08-5,939.79-1,187.04

Finding the Fourth Proportional to 3,961.08, 5,939.79 and 1,187.04

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Solution

The fourth proportional to 3,961.08, 5,939.79 and 1,187.04 is: 1,780.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,961.08 : 5,939.79 = 1,187.04 : x
  2. Step 2: Convert to fraction form
    3,961.08/5,939.79 = 1,187.04/x
  3. Step 3: Cross multiply
    3,961.08x = 5,939.79 × 1,187.04
  4. Step 4: Simplify right side
    3,961.08x = 7,050,768.32
  5. Step 5: Solve for x
    x = 7,050,768.32/3,961.08
  6. Step 6: Final answer
    x = 1,780.01

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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.