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Finding the Fourth Proportional to 2,609.46, 3,914.73 and 854.73

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Solution

The fourth proportional to 2,609.46, 3,914.73 and 854.73 is: 1,282.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,609.46 : 3,914.73 = 854.73 : x
  2. Step 2: Convert to fraction form
    2,609.46/3,914.73 = 854.73/x
  3. Step 3: Cross multiply
    2,609.46x = 3,914.73 × 854.73
  4. Step 4: Simplify right side
    2,609.46x = 3,346,037.17
  5. Step 5: Solve for x
    x = 3,346,037.17/2,609.46
  6. Step 6: Final answer
    x = 1,282.27

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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.