Home / 3,489.05-5,229.93-2,665.28

Finding the Fourth Proportional to 3,489.05, 5,229.93 and 2,665.28

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Solution

The fourth proportional to 3,489.05, 5,229.93 and 2,665.28 is: 3,995.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,489.05 : 5,229.93 = 2,665.28 : x
  2. Step 2: Convert to fraction form
    3,489.05/5,229.93 = 2,665.28/x
  3. Step 3: Cross multiply
    3,489.05x = 5,229.93 × 2,665.28
  4. Step 4: Simplify right side
    3,489.05x = 13,939,227.83
  5. Step 5: Solve for x
    x = 13,939,227.83/3,489.05
  6. Step 6: Final answer
    x = 3,995.14

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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.