Home / 7,984.77-11,977.23-2,790.66

Finding the Fourth Proportional to 7,984.77, 11,977.23 and 2,790.66

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Solution

The fourth proportional to 7,984.77, 11,977.23 and 2,790.66 is: 4,186.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,984.77 : 11,977.23 = 2,790.66 : x
  2. Step 2: Convert to fraction form
    7,984.77/11,977.23 = 2,790.66/x
  3. Step 3: Cross multiply
    7,984.77x = 11,977.23 × 2,790.66
  4. Step 4: Simplify right side
    7,984.77x = 33,424,376.67
  5. Step 5: Solve for x
    x = 33,424,376.67/7,984.77
  6. Step 6: Final answer
    x = 4,186.02

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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.