Home / 7,829.30-11,743.96-2,638.82

Finding the Fourth Proportional to 7,829.30, 11,743.96 and 2,638.82

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Solution

The fourth proportional to 7,829.30, 11,743.96 and 2,638.82 is: 3,958.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,829.30 : 11,743.96 = 2,638.82 : x
  2. Step 2: Convert to fraction form
    7,829.30/11,743.96 = 2,638.82/x
  3. Step 3: Cross multiply
    7,829.30x = 11,743.96 × 2,638.82
  4. Step 4: Simplify right side
    7,829.30x = 30,990,196.53
  5. Step 5: Solve for x
    x = 30,990,196.53/7,829.30
  6. Step 6: Final answer
    x = 3,958.23

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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.