Home / 5,453.04-8,183.63-2,121.81

Finding the Fourth Proportional to 5,453.04, 8,183.63 and 2,121.81

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Solution

The fourth proportional to 5,453.04, 8,183.63 and 2,121.81 is: 3,184.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,453.04 : 8,183.63 = 2,121.81 : x
  2. Step 2: Convert to fraction form
    5,453.04/8,183.63 = 2,121.81/x
  3. Step 3: Cross multiply
    5,453.04x = 8,183.63 × 2,121.81
  4. Step 4: Simplify right side
    5,453.04x = 17,364,128.62
  5. Step 5: Solve for x
    x = 17,364,128.62/5,453.04
  6. Step 6: Final answer
    x = 3,184.30

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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.