Home / 5,520.20-8,280.32-2,750.31

Finding the Fourth Proportional to 5,520.20, 8,280.32 and 2,750.31

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Solution

The fourth proportional to 5,520.20, 8,280.32 and 2,750.31 is: 4,125.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,520.20 : 8,280.32 = 2,750.31 : x
  2. Step 2: Convert to fraction form
    5,520.20/8,280.32 = 2,750.31/x
  3. Step 3: Cross multiply
    5,520.20x = 8,280.32 × 2,750.31
  4. Step 4: Simplify right side
    5,520.20x = 22,773,433.15
  5. Step 5: Solve for x
    x = 22,773,433.15/5,520.20
  6. Step 6: Final answer
    x = 4,125.48

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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.