Home / 2,857.32-4,282.38-1,211.94

Finding the Fourth Proportional to 2,857.32, 4,282.38 and 1,211.94

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Solution

The fourth proportional to 2,857.32, 4,282.38 and 1,211.94 is: 1,816.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,857.32 : 4,282.38 = 1,211.94 : x
  2. Step 2: Convert to fraction form
    2,857.32/4,282.38 = 1,211.94/x
  3. Step 3: Cross multiply
    2,857.32x = 4,282.38 × 1,211.94
  4. Step 4: Simplify right side
    2,857.32x = 5,189,987.62
  5. Step 5: Solve for x
    x = 5,189,987.62/2,857.32
  6. Step 6: Final answer
    x = 1,816.38

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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.