Home / 7,811.06-11,718.16-2,880.73

Finding the Fourth Proportional to 7,811.06, 11,718.16 and 2,880.73

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Solution

The fourth proportional to 7,811.06, 11,718.16 and 2,880.73 is: 4,321.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,811.06 : 11,718.16 = 2,880.73 : x
  2. Step 2: Convert to fraction form
    7,811.06/11,718.16 = 2,880.73/x
  3. Step 3: Cross multiply
    7,811.06x = 11,718.16 × 2,880.73
  4. Step 4: Simplify right side
    7,811.06x = 33,756,855.06
  5. Step 5: Solve for x
    x = 33,756,855.06/7,811.06
  6. Step 6: Final answer
    x = 4,321.67

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1.5x scale

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.