Home / 2,519.39-3,779.36-1,219.88

Finding the Fourth Proportional to 2,519.39, 3,779.36 and 1,219.88

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Solution

The fourth proportional to 2,519.39, 3,779.36 and 1,219.88 is: 1,829.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,519.39 : 3,779.36 = 1,219.88 : x
  2. Step 2: Convert to fraction form
    2,519.39/3,779.36 = 1,219.88/x
  3. Step 3: Cross multiply
    2,519.39x = 3,779.36 × 1,219.88
  4. Step 4: Simplify right side
    2,519.39x = 4,610,340.68
  5. Step 5: Solve for x
    x = 4,610,340.68/2,519.39
  6. Step 6: Final answer
    x = 1,829.95

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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.