Home / 4,765.05-7,147.58-3,209.85

Finding the Fourth Proportional to 4,765.05, 7,147.58 and 3,209.85

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Solution

The fourth proportional to 4,765.05, 7,147.58 and 3,209.85 is: 4,814.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,765.05 : 7,147.58 = 3,209.85 : x
  2. Step 2: Convert to fraction form
    4,765.05/7,147.58 = 3,209.85/x
  3. Step 3: Cross multiply
    4,765.05x = 7,147.58 × 3,209.85
  4. Step 4: Simplify right side
    4,765.05x = 22,942,643.61
  5. Step 5: Solve for x
    x = 22,942,643.61/4,765.05
  6. Step 6: Final answer
    x = 4,814.78

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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.