Home / 3,221.21-4,443.77-2,277.02

Finding the Fourth Proportional to 3,221.21, 4,443.77 and 2,277.02

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Solution

The fourth proportional to 3,221.21, 4,443.77 and 2,277.02 is: 3,141.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,221.21 : 4,443.77 = 2,277.02 : x
  2. Step 2: Convert to fraction form
    3,221.21/4,443.77 = 2,277.02/x
  3. Step 3: Cross multiply
    3,221.21x = 4,443.77 × 2,277.02
  4. Step 4: Simplify right side
    3,221.21x = 10,118,519.56
  5. Step 5: Solve for x
    x = 10,118,519.56/3,221.21
  6. Step 6: Final answer
    x = 3,141.22

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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.