Home / 1,881.64-2,819.33-1,331.09

Finding the Fourth Proportional to 1,881.64, 2,819.33 and 1,331.09

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Solution

The fourth proportional to 1,881.64, 2,819.33 and 1,331.09 is: 1,994.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,881.64 : 2,819.33 = 1,331.09 : x
  2. Step 2: Convert to fraction form
    1,881.64/2,819.33 = 1,331.09/x
  3. Step 3: Cross multiply
    1,881.64x = 2,819.33 × 1,331.09
  4. Step 4: Simplify right side
    1,881.64x = 3,752,761.22
  5. Step 5: Solve for x
    x = 3,752,761.22/1,881.64
  6. Step 6: Final answer
    x = 1,994.41

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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.