Home / 3,212.29-4,818.84-1,021.15

Finding the Fourth Proportional to 3,212.29, 4,818.84 and 1,021.15

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Solution

The fourth proportional to 3,212.29, 4,818.84 and 1,021.15 is: 1,531.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,212.29 : 4,818.84 = 1,021.15 : x
  2. Step 2: Convert to fraction form
    3,212.29/4,818.84 = 1,021.15/x
  3. Step 3: Cross multiply
    3,212.29x = 4,818.84 × 1,021.15
  4. Step 4: Simplify right side
    3,212.29x = 4,920,758.47
  5. Step 5: Solve for x
    x = 4,920,758.47/3,212.29
  6. Step 6: Final answer
    x = 1,531.85

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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.