Home / 7,934.32-11,900.44-2,091.39

Finding the Fourth Proportional to 7,934.32, 11,900.44 and 2,091.39

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Solution

The fourth proportional to 7,934.32, 11,900.44 and 2,091.39 is: 3,136.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,934.32 : 11,900.44 = 2,091.39 : x
  2. Step 2: Convert to fraction form
    7,934.32/11,900.44 = 2,091.39/x
  3. Step 3: Cross multiply
    7,934.32x = 11,900.44 × 2,091.39
  4. Step 4: Simplify right side
    7,934.32x = 24,888,461.21
  5. Step 5: Solve for x
    x = 24,888,461.21/7,934.32
  6. Step 6: Final answer
    x = 3,136.81

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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.