Home / 3,979.44-5,969.16-1,926

Finding the Fourth Proportional to 3,979.44, 5,969.16 and 1,926

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Solution

The fourth proportional to 3,979.44, 5,969.16 and 1,926 is: 2,889

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,979.44 : 5,969.16 = 1,926 : x
  2. Step 2: Convert to fraction form
    3,979.44/5,969.16 = 1,926/x
  3. Step 3: Cross multiply
    3,979.44x = 5,969.16 × 1,926
  4. Step 4: Simplify right side
    3,979.44x = 11,496,602.16
  5. Step 5: Solve for x
    x = 11,496,602.16/3,979.44
  6. Step 6: Final answer
    x = 2,889

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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.