Home / 2,135.41-3,198.97-1,402.77

Finding the Fourth Proportional to 2,135.41, 3,198.97 and 1,402.77

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Solution

The fourth proportional to 2,135.41, 3,198.97 and 1,402.77 is: 2,101.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,135.41 : 3,198.97 = 1,402.77 : x
  2. Step 2: Convert to fraction form
    2,135.41/3,198.97 = 1,402.77/x
  3. Step 3: Cross multiply
    2,135.41x = 3,198.97 × 1,402.77
  4. Step 4: Simplify right side
    2,135.41x = 4,487,419.15
  5. Step 5: Solve for x
    x = 4,487,419.15/2,135.41
  6. Step 6: Final answer
    x = 2,101.43

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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.