Home / 6,986.80-9,641.73-3,842.98

Finding the Fourth Proportional to 6,986.80, 9,641.73 and 3,842.98

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Solution

The fourth proportional to 6,986.80, 9,641.73 and 3,842.98 is: 5,303.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,986.80 : 9,641.73 = 3,842.98 : x
  2. Step 2: Convert to fraction form
    6,986.80/9,641.73 = 3,842.98/x
  3. Step 3: Cross multiply
    6,986.80x = 9,641.73 × 3,842.98
  4. Step 4: Simplify right side
    6,986.80x = 37,052,975.56
  5. Step 5: Solve for x
    x = 37,052,975.56/6,986.80
  6. Step 6: Final answer
    x = 5,303.28

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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.