Home / 1,609.14-2,219.84-945.96

Finding the Fourth Proportional to 1,609.14, 2,219.84 and 945.96

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Solution

The fourth proportional to 1,609.14, 2,219.84 and 945.96 is: 1,304.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,609.14 : 2,219.84 = 945.96 : x
  2. Step 2: Convert to fraction form
    1,609.14/2,219.84 = 945.96/x
  3. Step 3: Cross multiply
    1,609.14x = 2,219.84 × 945.96
  4. Step 4: Simplify right side
    1,609.14x = 2,099,879.85
  5. Step 5: Solve for x
    x = 2,099,879.85/1,609.14
  6. Step 6: Final answer
    x = 1,304.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.