Home / 3,213.17-4,820.09-1,021.38

Finding the Fourth Proportional to 3,213.17, 4,820.09 and 1,021.38

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Solution

The fourth proportional to 3,213.17, 4,820.09 and 1,021.38 is: 1,532.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,213.17 : 4,820.09 = 1,021.38 : x
  2. Step 2: Convert to fraction form
    3,213.17/4,820.09 = 1,021.38/x
  3. Step 3: Cross multiply
    3,213.17x = 4,820.09 × 1,021.38
  4. Step 4: Simplify right side
    3,213.17x = 4,923,171.07
  5. Step 5: Solve for x
    x = 4,923,171.07/3,213.17
  6. Step 6: Final answer
    x = 1,532.19

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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.