Home / 4,072.20-6,078.39-3,518.28

Finding the Fourth Proportional to 4,072.20, 6,078.39 and 3,518.28

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Solution

The fourth proportional to 4,072.20, 6,078.39 and 3,518.28 is: 5,251.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,072.20 : 6,078.39 = 3,518.28 : x
  2. Step 2: Convert to fraction form
    4,072.20/6,078.39 = 3,518.28/x
  3. Step 3: Cross multiply
    4,072.20x = 6,078.39 × 3,518.28
  4. Step 4: Simplify right side
    4,072.20x = 21,385,477.97
  5. Step 5: Solve for x
    x = 21,385,477.97/4,072.20
  6. Step 6: Final answer
    x = 5,251.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.