Home / 6,815.39-10,206.68-3,884.81

Finding the Fourth Proportional to 6,815.39, 10,206.68 and 3,884.81

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Solution

The fourth proportional to 6,815.39, 10,206.68 and 3,884.81 is: 5,817.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,815.39 : 10,206.68 = 3,884.81 : x
  2. Step 2: Convert to fraction form
    6,815.39/10,206.68 = 3,884.81/x
  3. Step 3: Cross multiply
    6,815.39x = 10,206.68 × 3,884.81
  4. Step 4: Simplify right side
    6,815.39x = 39,650,942.07
  5. Step 5: Solve for x
    x = 39,650,942.07/6,815.39
  6. Step 6: Final answer
    x = 5,817.86

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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.