Home / 3,908.10-5,391.66-2,491.54

Finding the Fourth Proportional to 3,908.10, 5,391.66 and 2,491.54

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Solution

The fourth proportional to 3,908.10, 5,391.66 and 2,491.54 is: 3,437.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,908.10 : 5,391.66 = 2,491.54 : x
  2. Step 2: Convert to fraction form
    3,908.10/5,391.66 = 2,491.54/x
  3. Step 3: Cross multiply
    3,908.10x = 5,391.66 × 2,491.54
  4. Step 4: Simplify right side
    3,908.10x = 13,433,536.56
  5. Step 5: Solve for x
    x = 13,433,536.56/3,908.10
  6. Step 6: Final answer
    x = 3,437.36

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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.