Home / 4,173.78-5,757.44-2,979.03

Finding the Fourth Proportional to 4,173.78, 5,757.44 and 2,979.03

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Solution

The fourth proportional to 4,173.78, 5,757.44 and 2,979.03 is: 4,109.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,173.78 : 5,757.44 = 2,979.03 : x
  2. Step 2: Convert to fraction form
    4,173.78/5,757.44 = 2,979.03/x
  3. Step 3: Cross multiply
    4,173.78x = 5,757.44 × 2,979.03
  4. Step 4: Simplify right side
    4,173.78x = 17,151,571.59
  5. Step 5: Solve for x
    x = 17,151,571.59/4,173.78
  6. Step 6: Final answer
    x = 4,109.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.