Home / 3,218.16-4,822.92-1,269.30

Finding the Fourth Proportional to 3,218.16, 4,822.92 and 1,269.30

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Solution

The fourth proportional to 3,218.16, 4,822.92 and 1,269.30 is: 1,902.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,218.16 : 4,822.92 = 1,269.30 : x
  2. Step 2: Convert to fraction form
    3,218.16/4,822.92 = 1,269.30/x
  3. Step 3: Cross multiply
    3,218.16x = 4,822.92 × 1,269.30
  4. Step 4: Simplify right side
    3,218.16x = 6,121,732.36
  5. Step 5: Solve for x
    x = 6,121,732.36/3,218.16
  6. Step 6: Final answer
    x = 1,902.25

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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.