Home / 7,684.50-11,529.45-3,791.64

Finding the Fourth Proportional to 7,684.50, 11,529.45 and 3,791.64

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Solution

The fourth proportional to 7,684.50, 11,529.45 and 3,791.64 is: 5,688.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,684.50 : 11,529.45 = 3,791.64 : x
  2. Step 2: Convert to fraction form
    7,684.50/11,529.45 = 3,791.64/x
  3. Step 3: Cross multiply
    7,684.50x = 11,529.45 × 3,791.64
  4. Step 4: Simplify right side
    7,684.50x = 43,715,523.80
  5. Step 5: Solve for x
    x = 43,715,523.80/7,684.50
  6. Step 6: Final answer
    x = 5,688.79

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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.