Home / 2,819.01-3,890.39-1,771.41

Finding the Fourth Proportional to 2,819.01, 3,890.39 and 1,771.41

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Solution

The fourth proportional to 2,819.01, 3,890.39 and 1,771.41 is: 2,444.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,819.01 : 3,890.39 = 1,771.41 : x
  2. Step 2: Convert to fraction form
    2,819.01/3,890.39 = 1,771.41/x
  3. Step 3: Cross multiply
    2,819.01x = 3,890.39 × 1,771.41
  4. Step 4: Simplify right side
    2,819.01x = 6,891,466.89
  5. Step 5: Solve for x
    x = 6,891,466.89/2,819.01
  6. Step 6: Final answer
    x = 2,444.64

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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.