Home / 3,396.36-5,090.40-2,781.36

Finding the Fourth Proportional to 3,396.36, 5,090.40 and 2,781.36

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Solution

The fourth proportional to 3,396.36, 5,090.40 and 2,781.36 is: 4,168.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,396.36 : 5,090.40 = 2,781.36 : x
  2. Step 2: Convert to fraction form
    3,396.36/5,090.40 = 2,781.36/x
  3. Step 3: Cross multiply
    3,396.36x = 5,090.40 × 2,781.36
  4. Step 4: Simplify right side
    3,396.36x = 14,158,234.94
  5. Step 5: Solve for x
    x = 14,158,234.94/3,396.36
  6. Step 6: Final answer
    x = 4,168.65

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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.