Home / 3,239.96-4,865.80-2,979.48

Finding the Fourth Proportional to 3,239.96, 4,865.80 and 2,979.48

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Solution

The fourth proportional to 3,239.96, 4,865.80 and 2,979.48 is: 4,474.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,239.96 : 4,865.80 = 2,979.48 : x
  2. Step 2: Convert to fraction form
    3,239.96/4,865.80 = 2,979.48/x
  3. Step 3: Cross multiply
    3,239.96x = 4,865.80 × 2,979.48
  4. Step 4: Simplify right side
    3,239.96x = 14,497,538.89
  5. Step 5: Solve for x
    x = 14,497,538.89/3,239.96
  6. Step 6: Final answer
    x = 4,474.60

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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.