Home / 1,983.96-2,977.62-1,107.30

Finding the Fourth Proportional to 1,983.96, 2,977.62 and 1,107.30

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Solution

The fourth proportional to 1,983.96, 2,977.62 and 1,107.30 is: 1,661.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,983.96 : 2,977.62 = 1,107.30 : x
  2. Step 2: Convert to fraction form
    1,983.96/2,977.62 = 1,107.30/x
  3. Step 3: Cross multiply
    1,983.96x = 2,977.62 × 1,107.30
  4. Step 4: Simplify right side
    1,983.96x = 3,297,118.63
  5. Step 5: Solve for x
    x = 3,297,118.63/1,983.96
  6. Step 6: Final answer
    x = 1,661.89

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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.