Home / 3,324.96-4,988.40-3,319.20

Finding the Fourth Proportional to 3,324.96, 4,988.40 and 3,319.20

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Solution

The fourth proportional to 3,324.96, 4,988.40 and 3,319.20 is: 4,979.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,324.96 : 4,988.40 = 3,319.20 : x
  2. Step 2: Convert to fraction form
    3,324.96/4,988.40 = 3,319.20/x
  3. Step 3: Cross multiply
    3,324.96x = 4,988.40 × 3,319.20
  4. Step 4: Simplify right side
    3,324.96x = 16,557,497.28
  5. Step 5: Solve for x
    x = 16,557,497.28/3,324.96
  6. Step 6: Final answer
    x = 4,979.76

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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.