Home / 3,118.80-4,682.31-2,194.80

Finding the Fourth Proportional to 3,118.80, 4,682.31 and 2,194.80

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Solution

The fourth proportional to 3,118.80, 4,682.31 and 2,194.80 is: 3,295.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,118.80 : 4,682.31 = 2,194.80 : x
  2. Step 2: Convert to fraction form
    3,118.80/4,682.31 = 2,194.80/x
  3. Step 3: Cross multiply
    3,118.80x = 4,682.31 × 2,194.80
  4. Step 4: Simplify right side
    3,118.80x = 10,276,708.20
  5. Step 5: Solve for x
    x = 10,276,708.20/3,118.80
  6. Step 6: Final answer
    x = 3,295.08

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1.5x scale

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.