Home / 5,171.91-7,137.48-2,933.88

Finding the Fourth Proportional to 5,171.91, 7,137.48 and 2,933.88

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Solution

The fourth proportional to 5,171.91, 7,137.48 and 2,933.88 is: 4,048.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,171.91 : 7,137.48 = 2,933.88 : x
  2. Step 2: Convert to fraction form
    5,171.91/7,137.48 = 2,933.88/x
  3. Step 3: Cross multiply
    5,171.91x = 7,137.48 × 2,933.88
  4. Step 4: Simplify right side
    5,171.91x = 20,940,509.82
  5. Step 5: Solve for x
    x = 20,940,509.82/5,171.91
  6. Step 6: Final answer
    x = 4,048.89

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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.