Home / 3,930.92-5,424.99-2,252.87

Finding the Fourth Proportional to 3,930.92, 5,424.99 and 2,252.87

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Solution

The fourth proportional to 3,930.92, 5,424.99 and 2,252.87 is: 3,109.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,930.92 : 5,424.99 = 2,252.87 : x
  2. Step 2: Convert to fraction form
    3,930.92/5,424.99 = 2,252.87/x
  3. Step 3: Cross multiply
    3,930.92x = 5,424.99 × 2,252.87
  4. Step 4: Simplify right side
    3,930.92x = 12,221,797.22
  5. Step 5: Solve for x
    x = 12,221,797.22/3,930.92
  6. Step 6: Final answer
    x = 3,109.14

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1.5x scale

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.