Home / 1,815.44-2,723.95-1,408.11

Finding the Fourth Proportional to 1,815.44, 2,723.95 and 1,408.11

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Solution

The fourth proportional to 1,815.44, 2,723.95 and 1,408.11 is: 2,112.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,815.44 : 2,723.95 = 1,408.11 : x
  2. Step 2: Convert to fraction form
    1,815.44/2,723.95 = 1,408.11/x
  3. Step 3: Cross multiply
    1,815.44x = 2,723.95 × 1,408.11
  4. Step 4: Simplify right side
    1,815.44x = 3,835,624.40
  5. Step 5: Solve for x
    x = 3,835,624.40/1,815.44
  6. Step 6: Final answer
    x = 2,112.78

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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.