Home / 1,819.31-2,728.40-941.54

Finding the Fourth Proportional to 1,819.31, 2,728.40 and 941.54

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Solution

The fourth proportional to 1,819.31, 2,728.40 and 941.54 is: 1,412.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,819.31 : 2,728.40 = 941.54 : x
  2. Step 2: Convert to fraction form
    1,819.31/2,728.40 = 941.54/x
  3. Step 3: Cross multiply
    1,819.31x = 2,728.40 × 941.54
  4. Step 4: Simplify right side
    1,819.31x = 2,568,879.39
  5. Step 5: Solve for x
    x = 2,568,879.39/1,819.31
  6. Step 6: Final answer
    x = 1,412.01

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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.