Home / 1,222.29-1,833.44-1,201.64

Finding the Fourth Proportional to 1,222.29, 1,833.44 and 1,201.64

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Solution

The fourth proportional to 1,222.29, 1,833.44 and 1,201.64 is: 1,802.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,222.29 : 1,833.44 = 1,201.64 : x
  2. Step 2: Convert to fraction form
    1,222.29/1,833.44 = 1,201.64/x
  3. Step 3: Cross multiply
    1,222.29x = 1,833.44 × 1,201.64
  4. Step 4: Simplify right side
    1,222.29x = 2,203,119.67
  5. Step 5: Solve for x
    x = 2,203,119.67/1,222.29
  6. Step 6: Final answer
    x = 1,802.45

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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.