Home / 4,078.52-5,628.34-2,215.56

Finding the Fourth Proportional to 4,078.52, 5,628.34 and 2,215.56

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Solution

The fourth proportional to 4,078.52, 5,628.34 and 2,215.56 is: 3,057.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,078.52 : 5,628.34 = 2,215.56 : x
  2. Step 2: Convert to fraction form
    4,078.52/5,628.34 = 2,215.56/x
  3. Step 3: Cross multiply
    4,078.52x = 5,628.34 × 2,215.56
  4. Step 4: Simplify right side
    4,078.52x = 12,469,924.97
  5. Step 5: Solve for x
    x = 12,469,924.97/4,078.52
  6. Step 6: Final answer
    x = 3,057.46

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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.