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Finding the Fourth Proportional to 7,272.86, 10,900.13 and 3,107.95

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Solution

The fourth proportional to 7,272.86, 10,900.13 and 3,107.95 is: 4,658.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,272.86 : 10,900.13 = 3,107.95 : x
  2. Step 2: Convert to fraction form
    7,272.86/10,900.13 = 3,107.95/x
  3. Step 3: Cross multiply
    7,272.86x = 10,900.13 × 3,107.95
  4. Step 4: Simplify right side
    7,272.86x = 33,877,059.03
  5. Step 5: Solve for x
    x = 33,877,059.03/7,272.86
  6. Step 6: Final answer
    x = 4,658.01

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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.