Home / 1,771.70-2,659.82-1,190.43

Finding the Fourth Proportional to 1,771.70, 2,659.82 and 1,190.43

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Solution

The fourth proportional to 1,771.70, 2,659.82 and 1,190.43 is: 1,787.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,771.70 : 2,659.82 = 1,190.43 : x
  2. Step 2: Convert to fraction form
    1,771.70/2,659.82 = 1,190.43/x
  3. Step 3: Cross multiply
    1,771.70x = 2,659.82 × 1,190.43
  4. Step 4: Simplify right side
    1,771.70x = 3,166,323.57
  5. Step 5: Solve for x
    x = 3,166,323.57/1,771.70
  6. Step 6: Final answer
    x = 1,787.17

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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.