Home / 3,556.88-5,336.11-1,091.91

Finding the Fourth Proportional to 3,556.88, 5,336.11 and 1,091.91

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Solution

The fourth proportional to 3,556.88, 5,336.11 and 1,091.91 is: 1,638.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,556.88 : 5,336.11 = 1,091.91 : x
  2. Step 2: Convert to fraction form
    3,556.88/5,336.11 = 1,091.91/x
  3. Step 3: Cross multiply
    3,556.88x = 5,336.11 × 1,091.91
  4. Step 4: Simplify right side
    3,556.88x = 5,826,573.25
  5. Step 5: Solve for x
    x = 5,826,573.25/3,556.88
  6. Step 6: Final answer
    x = 1,638.11

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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.