Home / 6,172.25-8,518.16-3,519.72

Finding the Fourth Proportional to 6,172.25, 8,518.16 and 3,519.72

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Solution

The fourth proportional to 6,172.25, 8,518.16 and 3,519.72 is: 4,857.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,172.25 : 8,518.16 = 3,519.72 : x
  2. Step 2: Convert to fraction form
    6,172.25/8,518.16 = 3,519.72/x
  3. Step 3: Cross multiply
    6,172.25x = 8,518.16 × 3,519.72
  4. Step 4: Simplify right side
    6,172.25x = 29,981,520.52
  5. Step 5: Solve for x
    x = 29,981,520.52/6,172.25
  6. Step 6: Final answer
    x = 4,857.47

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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.