Home / 3,973.91-5,491.04-2,858.54

Finding the Fourth Proportional to 3,973.91, 5,491.04 and 2,858.54

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Solution

The fourth proportional to 3,973.91, 5,491.04 and 2,858.54 is: 3,949.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,973.91 : 5,491.04 = 2,858.54 : x
  2. Step 2: Convert to fraction form
    3,973.91/5,491.04 = 2,858.54/x
  3. Step 3: Cross multiply
    3,973.91x = 5,491.04 × 2,858.54
  4. Step 4: Simplify right side
    3,973.91x = 15,696,315.73
  5. Step 5: Solve for x
    x = 15,696,315.73/3,973.91
  6. Step 6: Final answer
    x = 3,949.85

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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.