Home / 6,376.11-9,561.79-2,215

Finding the Fourth Proportional to 6,376.11, 9,561.79 and 2,215

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Solution

The fourth proportional to 6,376.11, 9,561.79 and 2,215 is: 3,321.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,376.11 : 9,561.79 = 2,215 : x
  2. Step 2: Convert to fraction form
    6,376.11/9,561.79 = 2,215/x
  3. Step 3: Cross multiply
    6,376.11x = 9,561.79 × 2,215
  4. Step 4: Simplify right side
    6,376.11x = 21,179,364.85
  5. Step 5: Solve for x
    x = 21,179,364.85/6,376.11
  6. Step 6: Final answer
    x = 3,321.67

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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.