Home / 3,218.18-4,439.60-2,224.84

Finding the Fourth Proportional to 3,218.18, 4,439.60 and 2,224.84

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Solution

The fourth proportional to 3,218.18, 4,439.60 and 2,224.84 is: 3,069.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,218.18 : 4,439.60 = 2,224.84 : x
  2. Step 2: Convert to fraction form
    3,218.18/4,439.60 = 2,224.84/x
  3. Step 3: Cross multiply
    3,218.18x = 4,439.60 × 2,224.84
  4. Step 4: Simplify right side
    3,218.18x = 9,877,399.66
  5. Step 5: Solve for x
    x = 9,877,399.66/3,218.18
  6. Step 6: Final answer
    x = 3,069.25

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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.