Home / 4,078.20-5,628.13-3,081.75

Finding the Fourth Proportional to 4,078.20, 5,628.13 and 3,081.75

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Solution

The fourth proportional to 4,078.20, 5,628.13 and 3,081.75 is: 4,252.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,078.20 : 5,628.13 = 3,081.75 : x
  2. Step 2: Convert to fraction form
    4,078.20/5,628.13 = 3,081.75/x
  3. Step 3: Cross multiply
    4,078.20x = 5,628.13 × 3,081.75
  4. Step 4: Simplify right side
    4,078.20x = 17,344,478.15
  5. Step 5: Solve for x
    x = 17,344,478.15/4,078.20
  6. Step 6: Final answer
    x = 4,252.98

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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.