Home / 5,645.12-8,464.79-3,305.63

Finding the Fourth Proportional to 5,645.12, 8,464.79 and 3,305.63

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Solution

The fourth proportional to 5,645.12, 8,464.79 and 3,305.63 is: 4,956.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,645.12 : 8,464.79 = 3,305.63 : x
  2. Step 2: Convert to fraction form
    5,645.12/8,464.79 = 3,305.63/x
  3. Step 3: Cross multiply
    5,645.12x = 8,464.79 × 3,305.63
  4. Step 4: Simplify right side
    5,645.12x = 27,981,493.19
  5. Step 5: Solve for x
    x = 27,981,493.19/5,645.12
  6. Step 6: Final answer
    x = 4,956.76

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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.