Home / 5,225.85-7,211.79-2,868

Finding the Fourth Proportional to 5,225.85, 7,211.79 and 2,868

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Solution

The fourth proportional to 5,225.85, 7,211.79 and 2,868 is: 3,957.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,225.85 : 7,211.79 = 2,868 : x
  2. Step 2: Convert to fraction form
    5,225.85/7,211.79 = 2,868/x
  3. Step 3: Cross multiply
    5,225.85x = 7,211.79 × 2,868
  4. Step 4: Simplify right side
    5,225.85x = 20,683,413.72
  5. Step 5: Solve for x
    x = 20,683,413.72/5,225.85
  6. Step 6: Final answer
    x = 3,957.90

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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.