Home / 3,623.40-5,440.20-1,869.60

Finding the Fourth Proportional to 3,623.40, 5,440.20 and 1,869.60

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Solution

The fourth proportional to 3,623.40, 5,440.20 and 1,869.60 is: 2,807.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,623.40 : 5,440.20 = 1,869.60 : x
  2. Step 2: Convert to fraction form
    3,623.40/5,440.20 = 1,869.60/x
  3. Step 3: Cross multiply
    3,623.40x = 5,440.20 × 1,869.60
  4. Step 4: Simplify right side
    3,623.40x = 10,170,997.92
  5. Step 5: Solve for x
    x = 10,170,997.92/3,623.40
  6. Step 6: Final answer
    x = 2,807.03

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.