Home / 6,720.57-10,083.15-3,211.65

Finding the Fourth Proportional to 6,720.57, 10,083.15 and 3,211.65

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Solution

The fourth proportional to 6,720.57, 10,083.15 and 3,211.65 is: 4,818.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,720.57 : 10,083.15 = 3,211.65 : x
  2. Step 2: Convert to fraction form
    6,720.57/10,083.15 = 3,211.65/x
  3. Step 3: Cross multiply
    6,720.57x = 10,083.15 × 3,211.65
  4. Step 4: Simplify right side
    6,720.57x = 32,383,548.70
  5. Step 5: Solve for x
    x = 32,383,548.70/6,720.57
  6. Step 6: Final answer
    x = 4,818.57

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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.