Home / 2,143.82-2,958.08-1,293.09

Finding the Fourth Proportional to 2,143.82, 2,958.08 and 1,293.09

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Solution

The fourth proportional to 2,143.82, 2,958.08 and 1,293.09 is: 1,784.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,143.82 : 2,958.08 = 1,293.09 : x
  2. Step 2: Convert to fraction form
    2,143.82/2,958.08 = 1,293.09/x
  3. Step 3: Cross multiply
    2,143.82x = 2,958.08 × 1,293.09
  4. Step 4: Simplify right side
    2,143.82x = 3,825,057.20
  5. Step 5: Solve for x
    x = 3,825,057.20/2,143.82
  6. Step 6: Final answer
    x = 1,784.23

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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.