Home / 3,221.10-4,444.47-2,224.80

Finding the Fourth Proportional to 3,221.10, 4,444.47 and 2,224.80

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Solution

The fourth proportional to 3,221.10, 4,444.47 and 2,224.80 is: 3,069.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,221.10 : 4,444.47 = 2,224.80 : x
  2. Step 2: Convert to fraction form
    3,221.10/4,444.47 = 2,224.80/x
  3. Step 3: Cross multiply
    3,221.10x = 4,444.47 × 2,224.80
  4. Step 4: Simplify right side
    3,221.10x = 9,888,056.86
  5. Step 5: Solve for x
    x = 9,888,056.86/3,221.10
  6. Step 6: Final answer
    x = 3,069.78

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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.