Home / 3,993.08-5,990.60-1,219.80

Finding the Fourth Proportional to 3,993.08, 5,990.60 and 1,219.80

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Solution

The fourth proportional to 3,993.08, 5,990.60 and 1,219.80 is: 1,830.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,993.08 : 5,990.60 = 1,219.80 : x
  2. Step 2: Convert to fraction form
    3,993.08/5,990.60 = 1,219.80/x
  3. Step 3: Cross multiply
    3,993.08x = 5,990.60 × 1,219.80
  4. Step 4: Simplify right side
    3,993.08x = 7,307,333.88
  5. Step 5: Solve for x
    x = 7,307,333.88/3,993.08
  6. Step 6: Final answer
    x = 1,830.00

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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.