Home / 7,640.05-11,464.55-3,197.35

Finding the Fourth Proportional to 7,640.05, 11,464.55 and 3,197.35

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Solution

The fourth proportional to 7,640.05, 11,464.55 and 3,197.35 is: 4,797.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,640.05 : 11,464.55 = 3,197.35 : x
  2. Step 2: Convert to fraction form
    7,640.05/11,464.55 = 3,197.35/x
  3. Step 3: Cross multiply
    7,640.05x = 11,464.55 × 3,197.35
  4. Step 4: Simplify right side
    7,640.05x = 36,656,115.80
  5. Step 5: Solve for x
    x = 36,656,115.80/7,640.05
  6. Step 6: Final answer
    x = 4,797.89

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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.