Home / 6,172.65-8,518.15-3,519.85

Finding the Fourth Proportional to 6,172.65, 8,518.15 and 3,519.85

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Solution

The fourth proportional to 6,172.65, 8,518.15 and 3,519.85 is: 4,857.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,172.65 : 8,518.15 = 3,519.85 : x
  2. Step 2: Convert to fraction form
    6,172.65/8,518.15 = 3,519.85/x
  3. Step 3: Cross multiply
    6,172.65x = 8,518.15 × 3,519.85
  4. Step 4: Simplify right side
    6,172.65x = 29,982,592.68
  5. Step 5: Solve for x
    x = 29,982,592.68/6,172.65
  6. Step 6: Final answer
    x = 4,857.33

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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.