Home / 3,993.06-5,990.47-1,219.95

Finding the Fourth Proportional to 3,993.06, 5,990.47 and 1,219.95

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Solution

The fourth proportional to 3,993.06, 5,990.47 and 1,219.95 is: 1,830.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,993.06 : 5,990.47 = 1,219.95 : x
  2. Step 2: Convert to fraction form
    3,993.06/5,990.47 = 1,219.95/x
  3. Step 3: Cross multiply
    3,993.06x = 5,990.47 × 1,219.95
  4. Step 4: Simplify right side
    3,993.06x = 7,308,051.79
  5. Step 5: Solve for x
    x = 7,308,051.79/3,993.06
  6. Step 6: Final answer
    x = 1,830.19

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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.