Home / 3,218.08-4,821.40-2,242.28

Finding the Fourth Proportional to 3,218.08, 4,821.40 and 2,242.28

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Solution

The fourth proportional to 3,218.08, 4,821.40 and 2,242.28 is: 3,359.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,218.08 : 4,821.40 = 2,242.28 : x
  2. Step 2: Convert to fraction form
    3,218.08/4,821.40 = 2,242.28/x
  3. Step 3: Cross multiply
    3,218.08x = 4,821.40 × 2,242.28
  4. Step 4: Simplify right side
    3,218.08x = 10,810,928.79
  5. Step 5: Solve for x
    x = 10,810,928.79/3,218.08
  6. Step 6: Final answer
    x = 3,359.43

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.