Home / 2,766.54-3,813.78-2,176.05

Finding the Fourth Proportional to 2,766.54, 3,813.78 and 2,176.05

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Solution

The fourth proportional to 2,766.54, 3,813.78 and 2,176.05 is: 2,999.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,766.54 : 3,813.78 = 2,176.05 : x
  2. Step 2: Convert to fraction form
    2,766.54/3,813.78 = 2,176.05/x
  3. Step 3: Cross multiply
    2,766.54x = 3,813.78 × 2,176.05
  4. Step 4: Simplify right side
    2,766.54x = 8,298,975.97
  5. Step 5: Solve for x
    x = 8,298,975.97/2,766.54
  6. Step 6: Final answer
    x = 2,999.77

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.