Home / 3,172.23-4,379.67-1,995.03

Finding the Fourth Proportional to 3,172.23, 4,379.67 and 1,995.03

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Solution

The fourth proportional to 3,172.23, 4,379.67 and 1,995.03 is: 2,754.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,172.23 : 4,379.67 = 1,995.03 : x
  2. Step 2: Convert to fraction form
    3,172.23/4,379.67 = 1,995.03/x
  3. Step 3: Cross multiply
    3,172.23x = 4,379.67 × 1,995.03
  4. Step 4: Simplify right side
    3,172.23x = 8,737,573.04
  5. Step 5: Solve for x
    x = 8,737,573.04/3,172.23
  6. Step 6: Final answer
    x = 2,754.39

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1.5x scale

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.