Home / 3,112.36-4,667.84-1,998.42

Finding the Fourth Proportional to 3,112.36, 4,667.84 and 1,998.42

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Solution

The fourth proportional to 3,112.36, 4,667.84 and 1,998.42 is: 2,997.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,112.36 : 4,667.84 = 1,998.42 : x
  2. Step 2: Convert to fraction form
    3,112.36/4,667.84 = 1,998.42/x
  3. Step 3: Cross multiply
    3,112.36x = 4,667.84 × 1,998.42
  4. Step 4: Simplify right side
    3,112.36x = 9,328,304.81
  5. Step 5: Solve for x
    x = 9,328,304.81/3,112.36
  6. Step 6: Final answer
    x = 2,997.18

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Double scale
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Similar ratio
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1.5x scale

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.