Home / 3,512.86-4,847.82-1,940.92

Finding the Fourth Proportional to 3,512.86, 4,847.82 and 1,940.92

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Solution

The fourth proportional to 3,512.86, 4,847.82 and 1,940.92 is: 2,678.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,512.86 : 4,847.82 = 1,940.92 : x
  2. Step 2: Convert to fraction form
    3,512.86/4,847.82 = 1,940.92/x
  3. Step 3: Cross multiply
    3,512.86x = 4,847.82 × 1,940.92
  4. Step 4: Simplify right side
    3,512.86x = 9,409,230.79
  5. Step 5: Solve for x
    x = 9,409,230.79/3,512.86
  6. Step 6: Final answer
    x = 2,678.51

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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.