Home / 3,839.68-5,298.78-2,183.68

Finding the Fourth Proportional to 3,839.68, 5,298.78 and 2,183.68

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Solution

The fourth proportional to 3,839.68, 5,298.78 and 2,183.68 is: 3,013.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,839.68 : 5,298.78 = 2,183.68 : x
  2. Step 2: Convert to fraction form
    3,839.68/5,298.78 = 2,183.68/x
  3. Step 3: Cross multiply
    3,839.68x = 5,298.78 × 2,183.68
  4. Step 4: Simplify right side
    3,839.68x = 11,570,839.91
  5. Step 5: Solve for x
    x = 11,570,839.91/3,839.68
  6. Step 6: Final answer
    x = 3,013.49

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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.