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Finding the Fourth Proportional to 7,892.38, 11,830.25 and 2,625.99

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Solution

The fourth proportional to 7,892.38, 11,830.25 and 2,625.99 is: 3,936.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,892.38 : 11,830.25 = 2,625.99 : x
  2. Step 2: Convert to fraction form
    7,892.38/11,830.25 = 2,625.99/x
  3. Step 3: Cross multiply
    7,892.38x = 11,830.25 × 2,625.99
  4. Step 4: Simplify right side
    7,892.38x = 31,066,065.63
  5. Step 5: Solve for x
    x = 31,066,065.63/7,892.38
  6. Step 6: Final answer
    x = 3,936.21

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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.