Home / 2,291.06-3,161.36-1,406.54

Finding the Fourth Proportional to 2,291.06, 3,161.36 and 1,406.54

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Solution

The fourth proportional to 2,291.06, 3,161.36 and 1,406.54 is: 1,940.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,291.06 : 3,161.36 = 1,406.54 : x
  2. Step 2: Convert to fraction form
    2,291.06/3,161.36 = 1,406.54/x
  3. Step 3: Cross multiply
    2,291.06x = 3,161.36 × 1,406.54
  4. Step 4: Simplify right side
    2,291.06x = 4,446,556.45
  5. Step 5: Solve for x
    x = 4,446,556.45/2,291.06
  6. Step 6: Final answer
    x = 1,940.83

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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.