Home / 2,183.80-3,270.90-1,316.60

Finding the Fourth Proportional to 2,183.80, 3,270.90 and 1,316.60

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Solution

The fourth proportional to 2,183.80, 3,270.90 and 1,316.60 is: 1,972.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,183.80 : 3,270.90 = 1,316.60 : x
  2. Step 2: Convert to fraction form
    2,183.80/3,270.90 = 1,316.60/x
  3. Step 3: Cross multiply
    2,183.80x = 3,270.90 × 1,316.60
  4. Step 4: Simplify right side
    2,183.80x = 4,306,466.94
  5. Step 5: Solve for x
    x = 4,306,466.94/2,183.80
  6. Step 6: Final answer
    x = 1,972.01

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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.