Home / 2,193.80-3,274.11-2,135.48

Finding the Fourth Proportional to 2,193.80, 3,274.11 and 2,135.48

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Solution

The fourth proportional to 2,193.80, 3,274.11 and 2,135.48 is: 3,187.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,193.80 : 3,274.11 = 2,135.48 : x
  2. Step 2: Convert to fraction form
    2,193.80/3,274.11 = 2,135.48/x
  3. Step 3: Cross multiply
    2,193.80x = 3,274.11 × 2,135.48
  4. Step 4: Simplify right side
    2,193.80x = 6,991,780.05
  5. Step 5: Solve for x
    x = 6,991,780.05/2,193.80
  6. Step 6: Final answer
    x = 3,187.07

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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.