Home / 7,162.21-10,738.99-3,212.75

Finding the Fourth Proportional to 7,162.21, 10,738.99 and 3,212.75

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Solution

The fourth proportional to 7,162.21, 10,738.99 and 3,212.75 is: 4,817.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,162.21 : 10,738.99 = 3,212.75 : x
  2. Step 2: Convert to fraction form
    7,162.21/10,738.99 = 3,212.75/x
  3. Step 3: Cross multiply
    7,162.21x = 10,738.99 × 3,212.75
  4. Step 4: Simplify right side
    7,162.21x = 34,501,690.12
  5. Step 5: Solve for x
    x = 34,501,690.12/7,162.21
  6. Step 6: Final answer
    x = 4,817.18

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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.