Home / 1,921.31-2,884.70-1,833.22

Finding the Fourth Proportional to 1,921.31, 2,884.70 and 1,833.22

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Solution

The fourth proportional to 1,921.31, 2,884.70 and 1,833.22 is: 2,752.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,921.31 : 2,884.70 = 1,833.22 : x
  2. Step 2: Convert to fraction form
    1,921.31/2,884.70 = 1,833.22/x
  3. Step 3: Cross multiply
    1,921.31x = 2,884.70 × 1,833.22
  4. Step 4: Simplify right side
    1,921.31x = 5,288,289.73
  5. Step 5: Solve for x
    x = 5,288,289.73/1,921.31
  6. Step 6: Final answer
    x = 2,752.44

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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.