Home / 5,711.30-8,574.75-2,939.86

Finding the Fourth Proportional to 5,711.30, 8,574.75 and 2,939.86

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Solution

The fourth proportional to 5,711.30, 8,574.75 and 2,939.86 is: 4,413.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,711.30 : 8,574.75 = 2,939.86 : x
  2. Step 2: Convert to fraction form
    5,711.30/8,574.75 = 2,939.86/x
  3. Step 3: Cross multiply
    5,711.30x = 8,574.75 × 2,939.86
  4. Step 4: Simplify right side
    5,711.30x = 25,208,564.54
  5. Step 5: Solve for x
    x = 25,208,564.54/5,711.30
  6. Step 6: Final answer
    x = 4,413.81

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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.