Home / 2,668.14-4,002.27-2,120.70

Finding the Fourth Proportional to 2,668.14, 4,002.27 and 2,120.70

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Solution

The fourth proportional to 2,668.14, 4,002.27 and 2,120.70 is: 3,181.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,668.14 : 4,002.27 = 2,120.70 : x
  2. Step 2: Convert to fraction form
    2,668.14/4,002.27 = 2,120.70/x
  3. Step 3: Cross multiply
    2,668.14x = 4,002.27 × 2,120.70
  4. Step 4: Simplify right side
    2,668.14x = 8,487,613.99
  5. Step 5: Solve for x
    x = 8,487,613.99/2,668.14
  6. Step 6: Final answer
    x = 3,181.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.