Home / 3,396.86-4,688.07-2,221.34

Finding the Fourth Proportional to 3,396.86, 4,688.07 and 2,221.34

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Solution

The fourth proportional to 3,396.86, 4,688.07 and 2,221.34 is: 3,065.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,396.86 : 4,688.07 = 2,221.34 : x
  2. Step 2: Convert to fraction form
    3,396.86/4,688.07 = 2,221.34/x
  3. Step 3: Cross multiply
    3,396.86x = 4,688.07 × 2,221.34
  4. Step 4: Simplify right side
    3,396.86x = 10,413,797.41
  5. Step 5: Solve for x
    x = 10,413,797.41/3,396.86
  6. Step 6: Final answer
    x = 3,065.71

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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.