Home / 3,679.46-5,515.73-2,199.09

Finding the Fourth Proportional to 3,679.46, 5,515.73 and 2,199.09

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Solution

The fourth proportional to 3,679.46, 5,515.73 and 2,199.09 is: 3,296.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,679.46 : 5,515.73 = 2,199.09 : x
  2. Step 2: Convert to fraction form
    3,679.46/5,515.73 = 2,199.09/x
  3. Step 3: Cross multiply
    3,679.46x = 5,515.73 × 2,199.09
  4. Step 4: Simplify right side
    3,679.46x = 12,129,586.69
  5. Step 5: Solve for x
    x = 12,129,586.69/3,679.46
  6. Step 6: Final answer
    x = 3,296.57

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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.