Home / 3,979.90-5,968.11-2,004.28

Finding the Fourth Proportional to 3,979.90, 5,968.11 and 2,004.28

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Solution

The fourth proportional to 3,979.90, 5,968.11 and 2,004.28 is: 3,005.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,979.90 : 5,968.11 = 2,004.28 : x
  2. Step 2: Convert to fraction form
    3,979.90/5,968.11 = 2,004.28/x
  3. Step 3: Cross multiply
    3,979.90x = 5,968.11 × 2,004.28
  4. Step 4: Simplify right side
    3,979.90x = 11,961,756.11
  5. Step 5: Solve for x
    x = 11,961,756.11/3,979.90
  6. Step 6: Final answer
    x = 3,005.54

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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.