Home / 7,935.86-11,905.61-2,670.74

Finding the Fourth Proportional to 7,935.86, 11,905.61 and 2,670.74

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Solution

The fourth proportional to 7,935.86, 11,905.61 and 2,670.74 is: 4,006.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,935.86 : 11,905.61 = 2,670.74 : x
  2. Step 2: Convert to fraction form
    7,935.86/11,905.61 = 2,670.74/x
  3. Step 3: Cross multiply
    7,935.86x = 11,905.61 × 2,670.74
  4. Step 4: Simplify right side
    7,935.86x = 31,796,736.00
  5. Step 5: Solve for x
    x = 31,796,736.00/7,935.86
  6. Step 6: Final answer
    x = 4,006.71

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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.