Home / 4,815.21-7,215.71-2,183.52

Finding the Fourth Proportional to 4,815.21, 7,215.71 and 2,183.52

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Solution

The fourth proportional to 4,815.21, 7,215.71 and 2,183.52 is: 3,272.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,815.21 : 7,215.71 = 2,183.52 : x
  2. Step 2: Convert to fraction form
    4,815.21/7,215.71 = 2,183.52/x
  3. Step 3: Cross multiply
    4,815.21x = 7,215.71 × 2,183.52
  4. Step 4: Simplify right side
    4,815.21x = 15,755,647.10
  5. Step 5: Solve for x
    x = 15,755,647.10/4,815.21
  6. Step 6: Final answer
    x = 3,272.06

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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.