Home / 6,814.92-9,405.30-3,830.76

Finding the Fourth Proportional to 6,814.92, 9,405.30 and 3,830.76

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Solution

The fourth proportional to 6,814.92, 9,405.30 and 3,830.76 is: 5,286.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,814.92 : 9,405.30 = 3,830.76 : x
  2. Step 2: Convert to fraction form
    6,814.92/9,405.30 = 3,830.76/x
  3. Step 3: Cross multiply
    6,814.92x = 9,405.30 × 3,830.76
  4. Step 4: Simplify right side
    6,814.92x = 36,029,447.03
  5. Step 5: Solve for x
    x = 36,029,447.03/6,814.92
  6. Step 6: Final answer
    x = 5,286.85

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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.