Home / 3,163.80-4,365.42-1,766.28

Finding the Fourth Proportional to 3,163.80, 4,365.42 and 1,766.28

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Solution

The fourth proportional to 3,163.80, 4,365.42 and 1,766.28 is: 2,437.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,163.80 : 4,365.42 = 1,766.28 : x
  2. Step 2: Convert to fraction form
    3,163.80/4,365.42 = 1,766.28/x
  3. Step 3: Cross multiply
    3,163.80x = 4,365.42 × 1,766.28
  4. Step 4: Simplify right side
    3,163.80x = 7,710,554.04
  5. Step 5: Solve for x
    x = 7,710,554.04/3,163.80
  6. Step 6: Final answer
    x = 2,437.12

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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.