Home / 2,986.50-4,121.37-2,056.62

Finding the Fourth Proportional to 2,986.50, 4,121.37 and 2,056.62

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Solution

The fourth proportional to 2,986.50, 4,121.37 and 2,056.62 is: 2,838.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,986.50 : 4,121.37 = 2,056.62 : x
  2. Step 2: Convert to fraction form
    2,986.50/4,121.37 = 2,056.62/x
  3. Step 3: Cross multiply
    2,986.50x = 4,121.37 × 2,056.62
  4. Step 4: Simplify right side
    2,986.50x = 8,476,091.97
  5. Step 5: Solve for x
    x = 8,476,091.97/2,986.50
  6. Step 6: Final answer
    x = 2,838.14

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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.