Home / 4,280.20-6,445.49-3,738.92

Finding the Fourth Proportional to 4,280.20, 6,445.49 and 3,738.92

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Solution

The fourth proportional to 4,280.20, 6,445.49 and 3,738.92 is: 5,630.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,280.20 : 6,445.49 = 3,738.92 : x
  2. Step 2: Convert to fraction form
    4,280.20/6,445.49 = 3,738.92/x
  3. Step 3: Cross multiply
    4,280.20x = 6,445.49 × 3,738.92
  4. Step 4: Simplify right side
    4,280.20x = 24,099,120.55
  5. Step 5: Solve for x
    x = 24,099,120.55/4,280.20
  6. Step 6: Final answer
    x = 5,630.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.