Home / 2,814.86-3,884.68-1,635.50

Finding the Fourth Proportional to 2,814.86, 3,884.68 and 1,635.50

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Solution

The fourth proportional to 2,814.86, 3,884.68 and 1,635.50 is: 2,257.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,814.86 : 3,884.68 = 1,635.50 : x
  2. Step 2: Convert to fraction form
    2,814.86/3,884.68 = 1,635.50/x
  3. Step 3: Cross multiply
    2,814.86x = 3,884.68 × 1,635.50
  4. Step 4: Simplify right side
    2,814.86x = 6,353,394.14
  5. Step 5: Solve for x
    x = 6,353,394.14/2,814.86
  6. Step 6: Final answer
    x = 2,257.09

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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.