Home / 1,922.78-2,653.43-1,083.49

Finding the Fourth Proportional to 1,922.78, 2,653.43 and 1,083.49

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Solution

The fourth proportional to 1,922.78, 2,653.43 and 1,083.49 is: 1,495.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,922.78 : 2,653.43 = 1,083.49 : x
  2. Step 2: Convert to fraction form
    1,922.78/2,653.43 = 1,083.49/x
  3. Step 3: Cross multiply
    1,922.78x = 2,653.43 × 1,083.49
  4. Step 4: Simplify right side
    1,922.78x = 2,874,951.60
  5. Step 5: Solve for x
    x = 2,874,951.60/1,922.78
  6. Step 6: Final answer
    x = 1,495.21

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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.