Home / 5,520.78-8,280.11-1,823.54

Finding the Fourth Proportional to 5,520.78, 8,280.11 and 1,823.54

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Solution

The fourth proportional to 5,520.78, 8,280.11 and 1,823.54 is: 2,734.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,520.78 : 8,280.11 = 1,823.54 : x
  2. Step 2: Convert to fraction form
    5,520.78/8,280.11 = 1,823.54/x
  3. Step 3: Cross multiply
    5,520.78x = 8,280.11 × 1,823.54
  4. Step 4: Simplify right side
    5,520.78x = 15,099,074.95
  5. Step 5: Solve for x
    x = 15,099,074.95/5,520.78
  6. Step 6: Final answer
    x = 2,734.95

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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.