Home / 1,984.13-2,738.09-1,100.06

Finding the Fourth Proportional to 1,984.13, 2,738.09 and 1,100.06

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Solution

The fourth proportional to 1,984.13, 2,738.09 and 1,100.06 is: 1,518.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,984.13 : 2,738.09 = 1,100.06 : x
  2. Step 2: Convert to fraction form
    1,984.13/2,738.09 = 1,100.06/x
  3. Step 3: Cross multiply
    1,984.13x = 2,738.09 × 1,100.06
  4. Step 4: Simplify right side
    1,984.13x = 3,012,072.88
  5. Step 5: Solve for x
    x = 3,012,072.88/1,984.13
  6. Step 6: Final answer
    x = 1,518.09

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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.