Home / 3,212.10-4,818.13-1,021

Finding the Fourth Proportional to 3,212.10, 4,818.13 and 1,021

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Solution

The fourth proportional to 3,212.10, 4,818.13 and 1,021 is: 1,531.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,212.10 : 4,818.13 = 1,021 : x
  2. Step 2: Convert to fraction form
    3,212.10/4,818.13 = 1,021/x
  3. Step 3: Cross multiply
    3,212.10x = 4,818.13 × 1,021
  4. Step 4: Simplify right side
    3,212.10x = 4,919,310.73
  5. Step 5: Solve for x
    x = 4,919,310.73/3,212.10
  6. Step 6: Final answer
    x = 1,531.49

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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.