Home / 2,940.90-4,408.52-1,091.51

Finding the Fourth Proportional to 2,940.90, 4,408.52 and 1,091.51

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Solution

The fourth proportional to 2,940.90, 4,408.52 and 1,091.51 is: 1,636.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,940.90 : 4,408.52 = 1,091.51 : x
  2. Step 2: Convert to fraction form
    2,940.90/4,408.52 = 1,091.51/x
  3. Step 3: Cross multiply
    2,940.90x = 4,408.52 × 1,091.51
  4. Step 4: Simplify right side
    2,940.90x = 4,811,924.35
  5. Step 5: Solve for x
    x = 4,811,924.35/2,940.90
  6. Step 6: Final answer
    x = 1,636.21

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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.