Home / 2,857.44-4,284.09-1,930.68

Finding the Fourth Proportional to 2,857.44, 4,284.09 and 1,930.68

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Solution

The fourth proportional to 2,857.44, 4,284.09 and 1,930.68 is: 2,894.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,857.44 : 4,284.09 = 1,930.68 : x
  2. Step 2: Convert to fraction form
    2,857.44/4,284.09 = 1,930.68/x
  3. Step 3: Cross multiply
    2,857.44x = 4,284.09 × 1,930.68
  4. Step 4: Simplify right side
    2,857.44x = 8,271,206.88
  5. Step 5: Solve for x
    x = 8,271,206.88/2,857.44
  6. Step 6: Final answer
    x = 2,894.62

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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.