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Finding the Fourth Proportional to 2,050, 3,076.26 and 1,076.80

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Solution

The fourth proportional to 2,050, 3,076.26 and 1,076.80 is: 1,615.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,050 : 3,076.26 = 1,076.80 : x
  2. Step 2: Convert to fraction form
    2,050/3,076.26 = 1,076.80/x
  3. Step 3: Cross multiply
    2,050x = 3,076.26 × 1,076.80
  4. Step 4: Simplify right side
    2,050x = 3,312,516.77
  5. Step 5: Solve for x
    x = 3,312,516.77/2,050
  6. Step 6: Final answer
    x = 1,615.86

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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.