Home / 3,689.16-5,531.69-1,222.64

Finding the Fourth Proportional to 3,689.16, 5,531.69 and 1,222.64

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Solution

The fourth proportional to 3,689.16, 5,531.69 and 1,222.64 is: 1,833.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,689.16 : 5,531.69 = 1,222.64 : x
  2. Step 2: Convert to fraction form
    3,689.16/5,531.69 = 1,222.64/x
  3. Step 3: Cross multiply
    3,689.16x = 5,531.69 × 1,222.64
  4. Step 4: Simplify right side
    3,689.16x = 6,763,231.69
  5. Step 5: Solve for x
    x = 6,763,231.69/3,689.16
  6. Step 6: Final answer
    x = 1,833.27

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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.