Home / 3,323.12-4,990.29-3,190.68

Finding the Fourth Proportional to 3,323.12, 4,990.29 and 3,190.68

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Solution

The fourth proportional to 3,323.12, 4,990.29 and 3,190.68 is: 4,791.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,323.12 : 4,990.29 = 3,190.68 : x
  2. Step 2: Convert to fraction form
    3,323.12/4,990.29 = 3,190.68/x
  3. Step 3: Cross multiply
    3,323.12x = 4,990.29 × 3,190.68
  4. Step 4: Simplify right side
    3,323.12x = 15,922,418.50
  5. Step 5: Solve for x
    x = 15,922,418.50/3,323.12
  6. Step 6: Final answer
    x = 4,791.41

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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.