Home / 2,919.81-4,028.62-1,873.29

Finding the Fourth Proportional to 2,919.81, 4,028.62 and 1,873.29

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Solution

The fourth proportional to 2,919.81, 4,028.62 and 1,873.29 is: 2,584.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,919.81 : 4,028.62 = 1,873.29 : x
  2. Step 2: Convert to fraction form
    2,919.81/4,028.62 = 1,873.29/x
  3. Step 3: Cross multiply
    2,919.81x = 4,028.62 × 1,873.29
  4. Step 4: Simplify right side
    2,919.81x = 7,546,773.56
  5. Step 5: Solve for x
    x = 7,546,773.56/2,919.81
  6. Step 6: Final answer
    x = 2,584.68

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.