Home / 3,394.86-4,687.20-2,200.20

Finding the Fourth Proportional to 3,394.86, 4,687.20 and 2,200.20

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Solution

The fourth proportional to 3,394.86, 4,687.20 and 2,200.20 is: 3,037.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,394.86 : 4,687.20 = 2,200.20 : x
  2. Step 2: Convert to fraction form
    3,394.86/4,687.20 = 2,200.20/x
  3. Step 3: Cross multiply
    3,394.86x = 4,687.20 × 2,200.20
  4. Step 4: Simplify right side
    3,394.86x = 10,312,777.44
  5. Step 5: Solve for x
    x = 10,312,777.44/3,394.86
  6. Step 6: Final answer
    x = 3,037.76

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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.