Home / 2,205.14-3,308.19-906.61

Finding the Fourth Proportional to 2,205.14, 3,308.19 and 906.61

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Solution

The fourth proportional to 2,205.14, 3,308.19 and 906.61 is: 1,360.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,205.14 : 3,308.19 = 906.61 : x
  2. Step 2: Convert to fraction form
    2,205.14/3,308.19 = 906.61/x
  3. Step 3: Cross multiply
    2,205.14x = 3,308.19 × 906.61
  4. Step 4: Simplify right side
    2,205.14x = 2,999,237.77
  5. Step 5: Solve for x
    x = 2,999,237.77/2,205.14
  6. Step 6: Final answer
    x = 1,360.11

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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.