Home / 1,604.62-2,214.30-905.86

Finding the Fourth Proportional to 1,604.62, 2,214.30 and 905.86

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Solution

The fourth proportional to 1,604.62, 2,214.30 and 905.86 is: 1,250.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,604.62 : 2,214.30 = 905.86 : x
  2. Step 2: Convert to fraction form
    1,604.62/2,214.30 = 905.86/x
  3. Step 3: Cross multiply
    1,604.62x = 2,214.30 × 905.86
  4. Step 4: Simplify right side
    1,604.62x = 2,005,845.80
  5. Step 5: Solve for x
    x = 2,005,845.80/1,604.62
  6. Step 6: Final answer
    x = 1,250.04

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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.