Home / 2,144.22-2,958.36-1,397.91

Finding the Fourth Proportional to 2,144.22, 2,958.36 and 1,397.91

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Solution

The fourth proportional to 2,144.22, 2,958.36 and 1,397.91 is: 1,928.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,144.22 : 2,958.36 = 1,397.91 : x
  2. Step 2: Convert to fraction form
    2,144.22/2,958.36 = 1,397.91/x
  3. Step 3: Cross multiply
    2,144.22x = 2,958.36 × 1,397.91
  4. Step 4: Simplify right side
    2,144.22x = 4,135,521.03
  5. Step 5: Solve for x
    x = 4,135,521.03/2,144.22
  6. Step 6: Final answer
    x = 1,928.68

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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.