Home / 2,103.36-3,157.26-1,179.69

Finding the Fourth Proportional to 2,103.36, 3,157.26 and 1,179.69

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Solution

The fourth proportional to 2,103.36, 3,157.26 and 1,179.69 is: 1,770.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,103.36 : 3,157.26 = 1,179.69 : x
  2. Step 2: Convert to fraction form
    2,103.36/3,157.26 = 1,179.69/x
  3. Step 3: Cross multiply
    2,103.36x = 3,157.26 × 1,179.69
  4. Step 4: Simplify right side
    2,103.36x = 3,724,588.05
  5. Step 5: Solve for x
    x = 3,724,588.05/2,103.36
  6. Step 6: Final answer
    x = 1,770.78

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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.