Home / 4,078.27-5,628.05-2,399.68

Finding the Fourth Proportional to 4,078.27, 5,628.05 and 2,399.68

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Solution

The fourth proportional to 4,078.27, 5,628.05 and 2,399.68 is: 3,311.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,078.27 : 5,628.05 = 2,399.68 : x
  2. Step 2: Convert to fraction form
    4,078.27/5,628.05 = 2,399.68/x
  3. Step 3: Cross multiply
    4,078.27x = 5,628.05 × 2,399.68
  4. Step 4: Simplify right side
    4,078.27x = 13,505,507.03
  5. Step 5: Solve for x
    x = 13,505,507.03/4,078.27
  6. Step 6: Final answer
    x = 3,311.58

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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.