Home / 2,819.26-3,890.73-1,771.66

Finding the Fourth Proportional to 2,819.26, 3,890.73 and 1,771.66

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Solution

The fourth proportional to 2,819.26, 3,890.73 and 1,771.66 is: 2,444.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,819.26 : 3,890.73 = 1,771.66 : x
  2. Step 2: Convert to fraction form
    2,819.26/3,890.73 = 1,771.66/x
  3. Step 3: Cross multiply
    2,819.26x = 3,890.73 × 1,771.66
  4. Step 4: Simplify right side
    2,819.26x = 6,893,050.71
  5. Step 5: Solve for x
    x = 6,893,050.71/2,819.26
  6. Step 6: Final answer
    x = 2,444.99

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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.