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Finding the Fourth Proportional to 3,205.53, 4,805.06 and 1,255.05

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Solution

The fourth proportional to 3,205.53, 4,805.06 and 1,255.05 is: 1,881.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,205.53 : 4,805.06 = 1,255.05 : x
  2. Step 2: Convert to fraction form
    3,205.53/4,805.06 = 1,255.05/x
  3. Step 3: Cross multiply
    3,205.53x = 4,805.06 × 1,255.05
  4. Step 4: Simplify right side
    3,205.53x = 6,030,584.28
  5. Step 5: Solve for x
    x = 6,030,584.28/3,205.53
  6. Step 6: Final answer
    x = 1,881.31

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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.