Home / 3,182.91-4,772.80-1,869.22

Finding the Fourth Proportional to 3,182.91, 4,772.80 and 1,869.22

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Solution

The fourth proportional to 3,182.91, 4,772.80 and 1,869.22 is: 2,802.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,182.91 : 4,772.80 = 1,869.22 : x
  2. Step 2: Convert to fraction form
    3,182.91/4,772.80 = 1,869.22/x
  3. Step 3: Cross multiply
    3,182.91x = 4,772.80 × 1,869.22
  4. Step 4: Simplify right side
    3,182.91x = 8,921,413.22
  5. Step 5: Solve for x
    x = 8,921,413.22/3,182.91
  6. Step 6: Final answer
    x = 2,802.91

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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.