Home / 6,480.52-8,940.30-4,121.39

Finding the Fourth Proportional to 6,480.52, 8,940.30 and 4,121.39

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Solution

The fourth proportional to 6,480.52, 8,940.30 and 4,121.39 is: 5,685.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,480.52 : 8,940.30 = 4,121.39 : x
  2. Step 2: Convert to fraction form
    6,480.52/8,940.30 = 4,121.39/x
  3. Step 3: Cross multiply
    6,480.52x = 8,940.30 × 4,121.39
  4. Step 4: Simplify right side
    6,480.52x = 36,846,463.02
  5. Step 5: Solve for x
    x = 36,846,463.02/6,480.52
  6. Step 6: Final answer
    x = 5,685.73

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1.5x scale

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.