Home / 3,769.16-5,645.36-2,122.02

Finding the Fourth Proportional to 3,769.16, 5,645.36 and 2,122.02

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Solution

The fourth proportional to 3,769.16, 5,645.36 and 2,122.02 is: 3,178.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,769.16 : 5,645.36 = 2,122.02 : x
  2. Step 2: Convert to fraction form
    3,769.16/5,645.36 = 2,122.02/x
  3. Step 3: Cross multiply
    3,769.16x = 5,645.36 × 2,122.02
  4. Step 4: Simplify right side
    3,769.16x = 11,979,581.84
  5. Step 5: Solve for x
    x = 11,979,581.84/3,769.16
  6. Step 6: Final answer
    x = 3,178.32

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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.