Home / 6,622.47-9,138.99-3,789.84

Finding the Fourth Proportional to 6,622.47, 9,138.99 and 3,789.84

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Solution

The fourth proportional to 6,622.47, 9,138.99 and 3,789.84 is: 5,229.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,622.47 : 9,138.99 = 3,789.84 : x
  2. Step 2: Convert to fraction form
    6,622.47/9,138.99 = 3,789.84/x
  3. Step 3: Cross multiply
    6,622.47x = 9,138.99 × 3,789.84
  4. Step 4: Simplify right side
    6,622.47x = 34,635,309.86
  5. Step 5: Solve for x
    x = 34,635,309.86/6,622.47
  6. Step 6: Final answer
    x = 5,229.97

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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.