Home / 3,822.65-5,727.43-2,989.39

Finding the Fourth Proportional to 3,822.65, 5,727.43 and 2,989.39

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Solution

The fourth proportional to 3,822.65, 5,727.43 and 2,989.39 is: 4,478.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,822.65 : 5,727.43 = 2,989.39 : x
  2. Step 2: Convert to fraction form
    3,822.65/5,727.43 = 2,989.39/x
  3. Step 3: Cross multiply
    3,822.65x = 5,727.43 × 2,989.39
  4. Step 4: Simplify right side
    3,822.65x = 17,121,534.38
  5. Step 5: Solve for x
    x = 17,121,534.38/3,822.65
  6. Step 6: Final answer
    x = 4,478.97

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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.