Home / 2,722.06-4,079.31-1,420.93

Finding the Fourth Proportional to 2,722.06, 4,079.31 and 1,420.93

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Solution

The fourth proportional to 2,722.06, 4,079.31 and 1,420.93 is: 2,129.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,722.06 : 4,079.31 = 1,420.93 : x
  2. Step 2: Convert to fraction form
    2,722.06/4,079.31 = 1,420.93/x
  3. Step 3: Cross multiply
    2,722.06x = 4,079.31 × 1,420.93
  4. Step 4: Simplify right side
    2,722.06x = 5,796,413.96
  5. Step 5: Solve for x
    x = 5,796,413.96/2,722.06
  6. Step 6: Final answer
    x = 2,129.42

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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.