Home / 2,143.24-2,957.45-1,198.96

Finding the Fourth Proportional to 2,143.24, 2,957.45 and 1,198.96

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Solution

The fourth proportional to 2,143.24, 2,957.45 and 1,198.96 is: 1,654.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,143.24 : 2,957.45 = 1,198.96 : x
  2. Step 2: Convert to fraction form
    2,143.24/2,957.45 = 1,198.96/x
  3. Step 3: Cross multiply
    2,143.24x = 2,957.45 × 1,198.96
  4. Step 4: Simplify right side
    2,143.24x = 3,545,850.86
  5. Step 5: Solve for x
    x = 3,545,850.86/2,143.24
  6. Step 6: Final answer
    x = 1,654.44

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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.