Home / 7,680.83-11,522.34-2,751.86

Finding the Fourth Proportional to 7,680.83, 11,522.34 and 2,751.86

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Solution

The fourth proportional to 7,680.83, 11,522.34 and 2,751.86 is: 4,128.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,680.83 : 11,522.34 = 2,751.86 : x
  2. Step 2: Convert to fraction form
    7,680.83/11,522.34 = 2,751.86/x
  3. Step 3: Cross multiply
    7,680.83x = 11,522.34 × 2,751.86
  4. Step 4: Simplify right side
    7,680.83x = 31,707,866.55
  5. Step 5: Solve for x
    x = 31,707,866.55/7,680.83
  6. Step 6: Final answer
    x = 4,128.18

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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.