Home / 4,078.82-5,628.84-2,215.82

Finding the Fourth Proportional to 4,078.82, 5,628.84 and 2,215.82

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Solution

The fourth proportional to 4,078.82, 5,628.84 and 2,215.82 is: 3,057.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,078.82 : 5,628.84 = 2,215.82 : x
  2. Step 2: Convert to fraction form
    4,078.82/5,628.84 = 2,215.82/x
  3. Step 3: Cross multiply
    4,078.82x = 5,628.84 × 2,215.82
  4. Step 4: Simplify right side
    4,078.82x = 12,472,496.25
  5. Step 5: Solve for x
    x = 12,472,496.25/4,078.82
  6. Step 6: Final answer
    x = 3,057.87

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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.