Home / 3,321.67-4,583.72-1,905.41

Finding the Fourth Proportional to 3,321.67, 4,583.72 and 1,905.41

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Solution

The fourth proportional to 3,321.67, 4,583.72 and 1,905.41 is: 2,629.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,321.67 : 4,583.72 = 1,905.41 : x
  2. Step 2: Convert to fraction form
    3,321.67/4,583.72 = 1,905.41/x
  3. Step 3: Cross multiply
    3,321.67x = 4,583.72 × 1,905.41
  4. Step 4: Simplify right side
    3,321.67x = 8,733,882.15
  5. Step 5: Solve for x
    x = 8,733,882.15/3,321.67
  6. Step 6: Final answer
    x = 2,629.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.