Home / 1,883.43-2,813.68-1,219.90

Finding the Fourth Proportional to 1,883.43, 2,813.68 and 1,219.90

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Solution

The fourth proportional to 1,883.43, 2,813.68 and 1,219.90 is: 1,822.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,883.43 : 2,813.68 = 1,219.90 : x
  2. Step 2: Convert to fraction form
    1,883.43/2,813.68 = 1,219.90/x
  3. Step 3: Cross multiply
    1,883.43x = 2,813.68 × 1,219.90
  4. Step 4: Simplify right side
    1,883.43x = 3,432,388.06
  5. Step 5: Solve for x
    x = 3,432,388.06/1,883.43
  6. Step 6: Final answer
    x = 1,822.42

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.