Home / 2,847.36-4,270.88-1,286.98

Finding the Fourth Proportional to 2,847.36, 4,270.88 and 1,286.98

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Solution

The fourth proportional to 2,847.36, 4,270.88 and 1,286.98 is: 1,930.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,847.36 : 4,270.88 = 1,286.98 : x
  2. Step 2: Convert to fraction form
    2,847.36/4,270.88 = 1,286.98/x
  3. Step 3: Cross multiply
    2,847.36x = 4,270.88 × 1,286.98
  4. Step 4: Simplify right side
    2,847.36x = 5,496,537.14
  5. Step 5: Solve for x
    x = 5,496,537.14/2,847.36
  6. Step 6: Final answer
    x = 1,930.40

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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.