Home / 2,511.09-3,766.46-779.67

Finding the Fourth Proportional to 2,511.09, 3,766.46 and 779.67

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Solution

The fourth proportional to 2,511.09, 3,766.46 and 779.67 is: 1,169.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,511.09 : 3,766.46 = 779.67 : x
  2. Step 2: Convert to fraction form
    2,511.09/3,766.46 = 779.67/x
  3. Step 3: Cross multiply
    2,511.09x = 3,766.46 × 779.67
  4. Step 4: Simplify right side
    2,511.09x = 2,936,591.97
  5. Step 5: Solve for x
    x = 2,936,591.97/2,511.09
  6. Step 6: Final answer
    x = 1,169.45

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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.