Home / 2,291.85-3,162.70-1,297.44

Finding the Fourth Proportional to 2,291.85, 3,162.70 and 1,297.44

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Solution

The fourth proportional to 2,291.85, 3,162.70 and 1,297.44 is: 1,790.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,291.85 : 3,162.70 = 1,297.44 : x
  2. Step 2: Convert to fraction form
    2,291.85/3,162.70 = 1,297.44/x
  3. Step 3: Cross multiply
    2,291.85x = 3,162.70 × 1,297.44
  4. Step 4: Simplify right side
    2,291.85x = 4,103,413.49
  5. Step 5: Solve for x
    x = 4,103,413.49/2,291.85
  6. Step 6: Final answer
    x = 1,790.44

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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.