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Finding the Fourth Proportional to 7,751.42, 11,629.56 and 2,560.94

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Solution

The fourth proportional to 7,751.42, 11,629.56 and 2,560.94 is: 3,842.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,751.42 : 11,629.56 = 2,560.94 : x
  2. Step 2: Convert to fraction form
    7,751.42/11,629.56 = 2,560.94/x
  3. Step 3: Cross multiply
    7,751.42x = 11,629.56 × 2,560.94
  4. Step 4: Simplify right side
    7,751.42x = 29,782,605.39
  5. Step 5: Solve for x
    x = 29,782,605.39/7,751.42
  6. Step 6: Final answer
    x = 3,842.21

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1.5x scale

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.