Home / 1,219.89-1,832.28-1,190.73

Finding the Fourth Proportional to 1,219.89, 1,832.28 and 1,190.73

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Solution

The fourth proportional to 1,219.89, 1,832.28 and 1,190.73 is: 1,788.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,219.89 : 1,832.28 = 1,190.73 : x
  2. Step 2: Convert to fraction form
    1,219.89/1,832.28 = 1,190.73/x
  3. Step 3: Cross multiply
    1,219.89x = 1,832.28 × 1,190.73
  4. Step 4: Simplify right side
    1,219.89x = 2,181,750.76
  5. Step 5: Solve for x
    x = 2,181,750.76/1,219.89
  6. Step 6: Final answer
    x = 1,788.48

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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.