Home / 5,080.80-7,010.86-2,811.82

Finding the Fourth Proportional to 5,080.80, 7,010.86 and 2,811.82

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Solution

The fourth proportional to 5,080.80, 7,010.86 and 2,811.82 is: 3,879.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,080.80 : 7,010.86 = 2,811.82 : x
  2. Step 2: Convert to fraction form
    5,080.80/7,010.86 = 2,811.82/x
  3. Step 3: Cross multiply
    5,080.80x = 7,010.86 × 2,811.82
  4. Step 4: Simplify right side
    5,080.80x = 19,713,276.37
  5. Step 5: Solve for x
    x = 19,713,276.37/5,080.80
  6. Step 6: Final answer
    x = 3,879.96

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.