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Finding the Fourth Proportional to 7,841.58, 11,762.99 and 3,399.54

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Solution

The fourth proportional to 7,841.58, 11,762.99 and 3,399.54 is: 5,099.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,841.58 : 11,762.99 = 3,399.54 : x
  2. Step 2: Convert to fraction form
    7,841.58/11,762.99 = 3,399.54/x
  3. Step 3: Cross multiply
    7,841.58x = 11,762.99 × 3,399.54
  4. Step 4: Simplify right side
    7,841.58x = 39,988,738.03
  5. Step 5: Solve for x
    x = 39,988,738.03/7,841.58
  6. Step 6: Final answer
    x = 5,099.58

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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.