Home / 1,980.44-2,732.57-1,183.55

Finding the Fourth Proportional to 1,980.44, 2,732.57 and 1,183.55

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Solution

The fourth proportional to 1,980.44, 2,732.57 and 1,183.55 is: 1,633.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,980.44 : 2,732.57 = 1,183.55 : x
  2. Step 2: Convert to fraction form
    1,980.44/2,732.57 = 1,183.55/x
  3. Step 3: Cross multiply
    1,980.44x = 2,732.57 × 1,183.55
  4. Step 4: Simplify right side
    1,980.44x = 3,234,127.31
  5. Step 5: Solve for x
    x = 3,234,127.31/1,980.44
  6. Step 6: Final answer
    x = 1,633.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.