Home / 3,412.92-5,118.60-1,333

Finding the Fourth Proportional to 3,412.92, 5,118.60 and 1,333

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Solution

The fourth proportional to 3,412.92, 5,118.60 and 1,333 is: 1,999.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,412.92 : 5,118.60 = 1,333 : x
  2. Step 2: Convert to fraction form
    3,412.92/5,118.60 = 1,333/x
  3. Step 3: Cross multiply
    3,412.92x = 5,118.60 × 1,333
  4. Step 4: Simplify right side
    3,412.92x = 6,823,093.80
  5. Step 5: Solve for x
    x = 6,823,093.80/3,412.92
  6. Step 6: Final answer
    x = 1,999.20

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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.