Home / 2,850.23-3,930.22-1,853.66

Finding the Fourth Proportional to 2,850.23, 3,930.22 and 1,853.66

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Solution

The fourth proportional to 2,850.23, 3,930.22 and 1,853.66 is: 2,556.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,850.23 : 3,930.22 = 1,853.66 : x
  2. Step 2: Convert to fraction form
    2,850.23/3,930.22 = 1,853.66/x
  3. Step 3: Cross multiply
    2,850.23x = 3,930.22 × 1,853.66
  4. Step 4: Simplify right side
    2,850.23x = 7,285,303.75
  5. Step 5: Solve for x
    x = 7,285,303.75/2,850.23
  6. Step 6: Final answer
    x = 2,556.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.