Home / 1,980.06-2,732.37-1,183.40

Finding the Fourth Proportional to 1,980.06, 2,732.37 and 1,183.40

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Solution

The fourth proportional to 1,980.06, 2,732.37 and 1,183.40 is: 1,633.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,980.06 : 2,732.37 = 1,183.40 : x
  2. Step 2: Convert to fraction form
    1,980.06/2,732.37 = 1,183.40/x
  3. Step 3: Cross multiply
    1,980.06x = 2,732.37 × 1,183.40
  4. Step 4: Simplify right side
    1,980.06x = 3,233,491.10
  5. Step 5: Solve for x
    x = 3,233,491.10/1,980.06
  6. Step 6: Final answer
    x = 1,633.03

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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.