Home / 1,819.92-2,729.52-1,513.74

Finding the Fourth Proportional to 1,819.92, 2,729.52 and 1,513.74

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Solution

The fourth proportional to 1,819.92, 2,729.52 and 1,513.74 is: 2,270.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,819.92 : 2,729.52 = 1,513.74 : x
  2. Step 2: Convert to fraction form
    1,819.92/2,729.52 = 1,513.74/x
  3. Step 3: Cross multiply
    1,819.92x = 2,729.52 × 1,513.74
  4. Step 4: Simplify right side
    1,819.92x = 4,131,783.60
  5. Step 5: Solve for x
    x = 4,131,783.60/1,819.92
  6. Step 6: Final answer
    x = 2,270.31

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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.