Home / 7,154.46-10,731.70-2,771.92

Finding the Fourth Proportional to 7,154.46, 10,731.70 and 2,771.92

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Solution

The fourth proportional to 7,154.46, 10,731.70 and 2,771.92 is: 4,157.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,154.46 : 10,731.70 = 2,771.92 : x
  2. Step 2: Convert to fraction form
    7,154.46/10,731.70 = 2,771.92/x
  3. Step 3: Cross multiply
    7,154.46x = 10,731.70 × 2,771.92
  4. Step 4: Simplify right side
    7,154.46x = 29,747,413.86
  5. Step 5: Solve for x
    x = 29,747,413.86/7,154.46
  6. Step 6: Final answer
    x = 4,157.88

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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.