Home / 3,150.86-4,720.82-2,811.87

Finding the Fourth Proportional to 3,150.86, 4,720.82 and 2,811.87

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Solution

The fourth proportional to 3,150.86, 4,720.82 and 2,811.87 is: 4,212.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,150.86 : 4,720.82 = 2,811.87 : x
  2. Step 2: Convert to fraction form
    3,150.86/4,720.82 = 2,811.87/x
  3. Step 3: Cross multiply
    3,150.86x = 4,720.82 × 2,811.87
  4. Step 4: Simplify right side
    3,150.86x = 13,274,318.07
  5. Step 5: Solve for x
    x = 13,274,318.07/3,150.86
  6. Step 6: Final answer
    x = 4,212.93

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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.