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Finding the Fourth Proportional to 3,218.58, 4,804.07 and 3,195.90

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Solution

The fourth proportional to 3,218.58, 4,804.07 and 3,195.90 is: 4,770.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,218.58 : 4,804.07 = 3,195.90 : x
  2. Step 2: Convert to fraction form
    3,218.58/4,804.07 = 3,195.90/x
  3. Step 3: Cross multiply
    3,218.58x = 4,804.07 × 3,195.90
  4. Step 4: Simplify right side
    3,218.58x = 15,353,311.33
  5. Step 5: Solve for x
    x = 15,353,311.33/3,218.58
  6. Step 6: Final answer
    x = 4,770.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.