Home / 6,831-9,426.85-3,846.69

Finding the Fourth Proportional to 6,831, 9,426.85 and 3,846.69

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Solution

The fourth proportional to 6,831, 9,426.85 and 3,846.69 is: 5,308.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,831 : 9,426.85 = 3,846.69 : x
  2. Step 2: Convert to fraction form
    6,831/9,426.85 = 3,846.69/x
  3. Step 3: Cross multiply
    6,831x = 9,426.85 × 3,846.69
  4. Step 4: Simplify right side
    6,831x = 36,262,160.01
  5. Step 5: Solve for x
    x = 36,262,160.01/6,831
  6. Step 6: Final answer
    x = 5,308.47

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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.