Home / 1,994.08-2,751.44-1,208.48

Finding the Fourth Proportional to 1,994.08, 2,751.44 and 1,208.48

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Solution

The fourth proportional to 1,994.08, 2,751.44 and 1,208.48 is: 1,667.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,994.08 : 2,751.44 = 1,208.48 : x
  2. Step 2: Convert to fraction form
    1,994.08/2,751.44 = 1,208.48/x
  3. Step 3: Cross multiply
    1,994.08x = 2,751.44 × 1,208.48
  4. Step 4: Simplify right side
    1,994.08x = 3,325,060.21
  5. Step 5: Solve for x
    x = 3,325,060.21/1,994.08
  6. Step 6: Final answer
    x = 1,667.47

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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.