Home / 7,672.26-11,511.08-3,779.40

Finding the Fourth Proportional to 7,672.26, 11,511.08 and 3,779.40

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Solution

The fourth proportional to 7,672.26, 11,511.08 and 3,779.40 is: 5,670.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,672.26 : 11,511.08 = 3,779.40 : x
  2. Step 2: Convert to fraction form
    7,672.26/11,511.08 = 3,779.40/x
  3. Step 3: Cross multiply
    7,672.26x = 11,511.08 × 3,779.40
  4. Step 4: Simplify right side
    7,672.26x = 43,504,975.75
  5. Step 5: Solve for x
    x = 43,504,975.75/7,672.26
  6. Step 6: Final answer
    x = 5,670.43

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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.