Home / 1,994.16-2,752.19-1,208.21

Finding the Fourth Proportional to 1,994.16, 2,752.19 and 1,208.21

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Solution

The fourth proportional to 1,994.16, 2,752.19 and 1,208.21 is: 1,667.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,994.16 : 2,752.19 = 1,208.21 : x
  2. Step 2: Convert to fraction form
    1,994.16/2,752.19 = 1,208.21/x
  3. Step 3: Cross multiply
    1,994.16x = 2,752.19 × 1,208.21
  4. Step 4: Simplify right side
    1,994.16x = 3,325,203.68
  5. Step 5: Solve for x
    x = 3,325,203.68/1,994.16
  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.