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Finding the Fourth Proportional to 7,992.71, 11,989.06 and 2,797.37

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Solution

The fourth proportional to 7,992.71, 11,989.06 and 2,797.37 is: 4,196.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,992.71 : 11,989.06 = 2,797.37 : x
  2. Step 2: Convert to fraction form
    7,992.71/11,989.06 = 2,797.37/x
  3. Step 3: Cross multiply
    7,992.71x = 11,989.06 × 2,797.37
  4. Step 4: Simplify right side
    7,992.71x = 33,537,836.77
  5. Step 5: Solve for x
    x = 33,537,836.77/7,992.71
  6. Step 6: Final answer
    x = 4,196.05

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1.5x scale

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.