Home / 2,262.21-3,390.31-1,222.47

Finding the Fourth Proportional to 2,262.21, 3,390.31 and 1,222.47

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Solution

The fourth proportional to 2,262.21, 3,390.31 and 1,222.47 is: 1,832.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,262.21 : 3,390.31 = 1,222.47 : x
  2. Step 2: Convert to fraction form
    2,262.21/3,390.31 = 1,222.47/x
  3. Step 3: Cross multiply
    2,262.21x = 3,390.31 × 1,222.47
  4. Step 4: Simplify right side
    2,262.21x = 4,144,546.92
  5. Step 5: Solve for x
    x = 4,144,546.92/2,262.21
  6. Step 6: Final answer
    x = 1,832.08

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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.