Home / 1,922.67-2,879.82-1,190.70

Finding the Fourth Proportional to 1,922.67, 2,879.82 and 1,190.70

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Solution

The fourth proportional to 1,922.67, 2,879.82 and 1,190.70 is: 1,783.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,922.67 : 2,879.82 = 1,190.70 : x
  2. Step 2: Convert to fraction form
    1,922.67/2,879.82 = 1,190.70/x
  3. Step 3: Cross multiply
    1,922.67x = 2,879.82 × 1,190.70
  4. Step 4: Simplify right side
    1,922.67x = 3,429,001.67
  5. Step 5: Solve for x
    x = 3,429,001.67/1,922.67
  6. Step 6: Final answer
    x = 1,783.46

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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.