Home / 2,745.08-4,113.78-1,280.60

Finding the Fourth Proportional to 2,745.08, 4,113.78 and 1,280.60

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Solution

The fourth proportional to 2,745.08, 4,113.78 and 1,280.60 is: 1,919.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,745.08 : 4,113.78 = 1,280.60 : x
  2. Step 2: Convert to fraction form
    2,745.08/4,113.78 = 1,280.60/x
  3. Step 3: Cross multiply
    2,745.08x = 4,113.78 × 1,280.60
  4. Step 4: Simplify right side
    2,745.08x = 5,268,106.67
  5. Step 5: Solve for x
    x = 5,268,106.67/2,745.08
  6. Step 6: Final answer
    x = 1,919.11

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.