Home / 1,984.87-2,739.25-1,100.75

Finding the Fourth Proportional to 1,984.87, 2,739.25 and 1,100.75

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Solution

The fourth proportional to 1,984.87, 2,739.25 and 1,100.75 is: 1,519.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,984.87 : 2,739.25 = 1,100.75 : x
  2. Step 2: Convert to fraction form
    1,984.87/2,739.25 = 1,100.75/x
  3. Step 3: Cross multiply
    1,984.87x = 2,739.25 × 1,100.75
  4. Step 4: Simplify right side
    1,984.87x = 3,015,236.99
  5. Step 5: Solve for x
    x = 3,015,236.99/1,984.87
  6. Step 6: Final answer
    x = 1,519.11

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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.