Home / 7,272.09-10,909.16-2,828.89

Finding the Fourth Proportional to 7,272.09, 10,909.16 and 2,828.89

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Solution

The fourth proportional to 7,272.09, 10,909.16 and 2,828.89 is: 4,243.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,272.09 : 10,909.16 = 2,828.89 : x
  2. Step 2: Convert to fraction form
    7,272.09/10,909.16 = 2,828.89/x
  3. Step 3: Cross multiply
    7,272.09x = 10,909.16 × 2,828.89
  4. Step 4: Simplify right side
    7,272.09x = 30,860,813.63
  5. Step 5: Solve for x
    x = 30,860,813.63/7,272.09
  6. Step 6: Final answer
    x = 4,243.73

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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.