Home / 3,668.20-5,507.16-2,109.76

Finding the Fourth Proportional to 3,668.20, 5,507.16 and 2,109.76

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Solution

The fourth proportional to 3,668.20, 5,507.16 and 2,109.76 is: 3,167.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,668.20 : 5,507.16 = 2,109.76 : x
  2. Step 2: Convert to fraction form
    3,668.20/5,507.16 = 2,109.76/x
  3. Step 3: Cross multiply
    3,668.20x = 5,507.16 × 2,109.76
  4. Step 4: Simplify right side
    3,668.20x = 11,618,785.88
  5. Step 5: Solve for x
    x = 11,618,785.88/3,668.20
  6. Step 6: Final answer
    x = 3,167.44

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1.5x scale

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.