Home / 3,179.28-4,388.64-2,395.68

Finding the Fourth Proportional to 3,179.28, 4,388.64 and 2,395.68

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Solution

The fourth proportional to 3,179.28, 4,388.64 and 2,395.68 is: 3,306.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,179.28 : 4,388.64 = 2,395.68 : x
  2. Step 2: Convert to fraction form
    3,179.28/4,388.64 = 2,395.68/x
  3. Step 3: Cross multiply
    3,179.28x = 4,388.64 × 2,395.68
  4. Step 4: Simplify right side
    3,179.28x = 10,513,777.08
  5. Step 5: Solve for x
    x = 10,513,777.08/3,179.28
  6. Step 6: Final answer
    x = 3,306.97

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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.