Home / 3,218.20-4,827.92-1,369.28

Finding the Fourth Proportional to 3,218.20, 4,827.92 and 1,369.28

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Solution

The fourth proportional to 3,218.20, 4,827.92 and 1,369.28 is: 2,054.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,218.20 : 4,827.92 = 1,369.28 : x
  2. Step 2: Convert to fraction form
    3,218.20/4,827.92 = 1,369.28/x
  3. Step 3: Cross multiply
    3,218.20x = 4,827.92 × 1,369.28
  4. Step 4: Simplify right side
    3,218.20x = 6,610,774.30
  5. Step 5: Solve for x
    x = 6,610,774.30/3,218.20
  6. Step 6: Final answer
    x = 2,054.18

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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.