Home / 3,264.21-4,896.86-1,620.81

Finding the Fourth Proportional to 3,264.21, 4,896.86 and 1,620.81

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Solution

The fourth proportional to 3,264.21, 4,896.86 and 1,620.81 is: 2,431.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,264.21 : 4,896.86 = 1,620.81 : x
  2. Step 2: Convert to fraction form
    3,264.21/4,896.86 = 1,620.81/x
  3. Step 3: Cross multiply
    3,264.21x = 4,896.86 × 1,620.81
  4. Step 4: Simplify right side
    3,264.21x = 7,936,871.55
  5. Step 5: Solve for x
    x = 7,936,871.55/3,264.21
  6. Step 6: Final answer
    x = 2,431.48

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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.