Home / 2,205.50-3,043.60-1,274.54

Finding the Fourth Proportional to 2,205.50, 3,043.60 and 1,274.54

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Solution

The fourth proportional to 2,205.50, 3,043.60 and 1,274.54 is: 1,758.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,205.50 : 3,043.60 = 1,274.54 : x
  2. Step 2: Convert to fraction form
    2,205.50/3,043.60 = 1,274.54/x
  3. Step 3: Cross multiply
    2,205.50x = 3,043.60 × 1,274.54
  4. Step 4: Simplify right side
    2,205.50x = 3,879,189.94
  5. Step 5: Solve for x
    x = 3,879,189.94/2,205.50
  6. Step 6: Final answer
    x = 1,758.87

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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.