Home / 1,819.40-2,729.10-1,262.60

Finding the Fourth Proportional to 1,819.40, 2,729.10 and 1,262.60

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Solution

The fourth proportional to 1,819.40, 2,729.10 and 1,262.60 is: 1,893.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,819.40 : 2,729.10 = 1,262.60 : x
  2. Step 2: Convert to fraction form
    1,819.40/2,729.10 = 1,262.60/x
  3. Step 3: Cross multiply
    1,819.40x = 2,729.10 × 1,262.60
  4. Step 4: Simplify right side
    1,819.40x = 3,445,761.66
  5. Step 5: Solve for x
    x = 3,445,761.66/1,819.40
  6. Step 6: Final answer
    x = 1,893.90

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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.