Home / 1,620.44-2,238.96-1,578.96

Finding the Fourth Proportional to 1,620.44, 2,238.96 and 1,578.96

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Solution

The fourth proportional to 1,620.44, 2,238.96 and 1,578.96 is: 2,181.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,620.44 : 2,238.96 = 1,578.96 : x
  2. Step 2: Convert to fraction form
    1,620.44/2,238.96 = 1,578.96/x
  3. Step 3: Cross multiply
    1,620.44x = 2,238.96 × 1,578.96
  4. Step 4: Simplify right side
    1,620.44x = 3,535,228.28
  5. Step 5: Solve for x
    x = 3,535,228.28/1,620.44
  6. Step 6: Final answer
    x = 2,181.65

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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.