Home / 1,922.43-2,878.62-1,262.22

Finding the Fourth Proportional to 1,922.43, 2,878.62 and 1,262.22

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Solution

The fourth proportional to 1,922.43, 2,878.62 and 1,262.22 is: 1,890.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,922.43 : 2,878.62 = 1,262.22 : x
  2. Step 2: Convert to fraction form
    1,922.43/2,878.62 = 1,262.22/x
  3. Step 3: Cross multiply
    1,922.43x = 2,878.62 × 1,262.22
  4. Step 4: Simplify right side
    1,922.43x = 3,633,451.74
  5. Step 5: Solve for x
    x = 3,633,451.74/1,922.43
  6. Step 6: Final answer
    x = 1,890.03

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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.