Home / 1,980.25-2,731.24-1,183.51

Finding the Fourth Proportional to 1,980.25, 2,731.24 and 1,183.51

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Solution

The fourth proportional to 1,980.25, 2,731.24 and 1,183.51 is: 1,632.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,980.25 : 2,731.24 = 1,183.51 : x
  2. Step 2: Convert to fraction form
    1,980.25/2,731.24 = 1,183.51/x
  3. Step 3: Cross multiply
    1,980.25x = 2,731.24 × 1,183.51
  4. Step 4: Simplify right side
    1,980.25x = 3,232,449.85
  5. Step 5: Solve for x
    x = 3,232,449.85/1,980.25
  6. Step 6: Final answer
    x = 1,632.35

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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.