Home / 3,209.42-4,816.80-3,185.12

Finding the Fourth Proportional to 3,209.42, 4,816.80 and 3,185.12

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Solution

The fourth proportional to 3,209.42, 4,816.80 and 3,185.12 is: 4,780.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,209.42 : 4,816.80 = 3,185.12 : x
  2. Step 2: Convert to fraction form
    3,209.42/4,816.80 = 3,185.12/x
  3. Step 3: Cross multiply
    3,209.42x = 4,816.80 × 3,185.12
  4. Step 4: Simplify right side
    3,209.42x = 15,342,086.02
  5. Step 5: Solve for x
    x = 15,342,086.02/3,209.42
  6. Step 6: Final answer
    x = 4,780.33

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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.