Home / 2,794.50-4,187.85-2,100.35

Finding the Fourth Proportional to 2,794.50, 4,187.85 and 2,100.35

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Solution

The fourth proportional to 2,794.50, 4,187.85 and 2,100.35 is: 3,147.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,794.50 : 4,187.85 = 2,100.35 : x
  2. Step 2: Convert to fraction form
    2,794.50/4,187.85 = 2,100.35/x
  3. Step 3: Cross multiply
    2,794.50x = 4,187.85 × 2,100.35
  4. Step 4: Simplify right side
    2,794.50x = 8,795,961.22
  5. Step 5: Solve for x
    x = 8,795,961.22/2,794.50
  6. Step 6: Final answer
    x = 3,147.60

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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.