Home / 6,222.80-9,348.60-4,278.80

Finding the Fourth Proportional to 6,222.80, 9,348.60 and 4,278.80

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Solution

The fourth proportional to 6,222.80, 9,348.60 and 4,278.80 is: 6,428.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,222.80 : 9,348.60 = 4,278.80 : x
  2. Step 2: Convert to fraction form
    6,222.80/9,348.60 = 4,278.80/x
  3. Step 3: Cross multiply
    6,222.80x = 9,348.60 × 4,278.80
  4. Step 4: Simplify right side
    6,222.80x = 40,000,789.68
  5. Step 5: Solve for x
    x = 40,000,789.68/6,222.80
  6. Step 6: Final answer
    x = 6,428.10

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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.