Home / 5,145.49-7,721.04-2,183.48

Finding the Fourth Proportional to 5,145.49, 7,721.04 and 2,183.48

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Solution

The fourth proportional to 5,145.49, 7,721.04 and 2,183.48 is: 3,276.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,145.49 : 7,721.04 = 2,183.48 : x
  2. Step 2: Convert to fraction form
    5,145.49/7,721.04 = 2,183.48/x
  3. Step 3: Cross multiply
    5,145.49x = 7,721.04 × 2,183.48
  4. Step 4: Simplify right side
    5,145.49x = 16,858,697.81
  5. Step 5: Solve for x
    x = 16,858,697.81/5,145.49
  6. Step 6: Final answer
    x = 3,276.41

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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.