Home / 5,199.96-7,792.26-3,121.08

Finding the Fourth Proportional to 5,199.96, 7,792.26 and 3,121.08

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Solution

The fourth proportional to 5,199.96, 7,792.26 and 3,121.08 is: 4,677.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,199.96 : 7,792.26 = 3,121.08 : x
  2. Step 2: Convert to fraction form
    5,199.96/7,792.26 = 3,121.08/x
  3. Step 3: Cross multiply
    5,199.96x = 7,792.26 × 3,121.08
  4. Step 4: Simplify right side
    5,199.96x = 24,320,266.84
  5. Step 5: Solve for x
    x = 24,320,266.84/5,199.96
  6. Step 6: Final answer
    x = 4,677.01

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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.