Home / 4,078.82-5,628.51-2,261.49

Finding the Fourth Proportional to 4,078.82, 5,628.51 and 2,261.49

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Solution

The fourth proportional to 4,078.82, 5,628.51 and 2,261.49 is: 3,120.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,078.82 : 5,628.51 = 2,261.49 : x
  2. Step 2: Convert to fraction form
    4,078.82/5,628.51 = 2,261.49/x
  3. Step 3: Cross multiply
    4,078.82x = 5,628.51 × 2,261.49
  4. Step 4: Simplify right side
    4,078.82x = 12,728,819.08
  5. Step 5: Solve for x
    x = 12,728,819.08/4,078.82
  6. Step 6: Final answer
    x = 3,120.71

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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.