Home / 1,324.43-1,977.12-1,228.31

Finding the Fourth Proportional to 1,324.43, 1,977.12 and 1,228.31

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Solution

The fourth proportional to 1,324.43, 1,977.12 and 1,228.31 is: 1,833.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,324.43 : 1,977.12 = 1,228.31 : x
  2. Step 2: Convert to fraction form
    1,324.43/1,977.12 = 1,228.31/x
  3. Step 3: Cross multiply
    1,324.43x = 1,977.12 × 1,228.31
  4. Step 4: Simplify right side
    1,324.43x = 2,428,500.24
  5. Step 5: Solve for x
    x = 2,428,500.24/1,324.43
  6. Step 6: Final answer
    x = 1,833.63

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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.