Home / 7,910.94-11,860.55-4,790.21

Finding the Fourth Proportional to 7,910.94, 11,860.55 and 4,790.21

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Solution

The fourth proportional to 7,910.94, 11,860.55 and 4,790.21 is: 7,181.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,910.94 : 11,860.55 = 4,790.21 : x
  2. Step 2: Convert to fraction form
    7,910.94/11,860.55 = 4,790.21/x
  3. Step 3: Cross multiply
    7,910.94x = 11,860.55 × 4,790.21
  4. Step 4: Simplify right side
    7,910.94x = 56,814,486.44
  5. Step 5: Solve for x
    x = 56,814,486.44/7,910.94
  6. Step 6: Final answer
    x = 7,181.77

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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.