Home / 3,698.90-5,556.45-2,731.22

Finding the Fourth Proportional to 3,698.90, 5,556.45 and 2,731.22

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Solution

The fourth proportional to 3,698.90, 5,556.45 and 2,731.22 is: 4,102.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,698.90 : 5,556.45 = 2,731.22 : x
  2. Step 2: Convert to fraction form
    3,698.90/5,556.45 = 2,731.22/x
  3. Step 3: Cross multiply
    3,698.90x = 5,556.45 × 2,731.22
  4. Step 4: Simplify right side
    3,698.90x = 15,175,887.37
  5. Step 5: Solve for x
    x = 15,175,887.37/3,698.90
  6. Step 6: Final answer
    x = 4,102.81

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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.