Home / 7,936.77-11,899.26-3,931.86

Finding the Fourth Proportional to 7,936.77, 11,899.26 and 3,931.86

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Solution

The fourth proportional to 7,936.77, 11,899.26 and 3,931.86 is: 5,894.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,936.77 : 11,899.26 = 3,931.86 : x
  2. Step 2: Convert to fraction form
    7,936.77/11,899.26 = 3,931.86/x
  3. Step 3: Cross multiply
    7,936.77x = 11,899.26 × 3,931.86
  4. Step 4: Simplify right side
    7,936.77x = 46,786,224.42
  5. Step 5: Solve for x
    x = 46,786,224.42/7,936.77
  6. Step 6: Final answer
    x = 5,894.87

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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.