Home / 3,486.30-5,229.07-1,021.15

Finding the Fourth Proportional to 3,486.30, 5,229.07 and 1,021.15

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Solution

The fourth proportional to 3,486.30, 5,229.07 and 1,021.15 is: 1,531.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,486.30 : 5,229.07 = 1,021.15 : x
  2. Step 2: Convert to fraction form
    3,486.30/5,229.07 = 1,021.15/x
  3. Step 3: Cross multiply
    3,486.30x = 5,229.07 × 1,021.15
  4. Step 4: Simplify right side
    3,486.30x = 5,339,638.69
  5. Step 5: Solve for x
    x = 5,339,638.69/3,486.30
  6. Step 6: Final answer
    x = 1,531.61

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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.