Home / 7,751.27-11,620.07-2,820.05

Finding the Fourth Proportional to 7,751.27, 11,620.07 and 2,820.05

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Solution

The fourth proportional to 7,751.27, 11,620.07 and 2,820.05 is: 4,227.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,751.27 : 11,620.07 = 2,820.05 : x
  2. Step 2: Convert to fraction form
    7,751.27/11,620.07 = 2,820.05/x
  3. Step 3: Cross multiply
    7,751.27x = 11,620.07 × 2,820.05
  4. Step 4: Simplify right side
    7,751.27x = 32,769,106.20
  5. Step 5: Solve for x
    x = 32,769,106.20/7,751.27
  6. Step 6: Final answer
    x = 4,227.58

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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.