Home / 2,445.39-3,669.30-1,212.75

Finding the Fourth Proportional to 2,445.39, 3,669.30 and 1,212.75

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Solution

The fourth proportional to 2,445.39, 3,669.30 and 1,212.75 is: 1,819.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,445.39 : 3,669.30 = 1,212.75 : x
  2. Step 2: Convert to fraction form
    2,445.39/3,669.30 = 1,212.75/x
  3. Step 3: Cross multiply
    2,445.39x = 3,669.30 × 1,212.75
  4. Step 4: Simplify right side
    2,445.39x = 4,449,943.58
  5. Step 5: Solve for x
    x = 4,449,943.58/2,445.39
  6. Step 6: Final answer
    x = 1,819.73

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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.