Home / 8,051.96-12,076.52-2,128.90

Finding the Fourth Proportional to 8,051.96, 12,076.52 and 2,128.90

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Solution

The fourth proportional to 8,051.96, 12,076.52 and 2,128.90 is: 3,192.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,051.96 : 12,076.52 = 2,128.90 : x
  2. Step 2: Convert to fraction form
    8,051.96/12,076.52 = 2,128.90/x
  3. Step 3: Cross multiply
    8,051.96x = 12,076.52 × 2,128.90
  4. Step 4: Simplify right side
    8,051.96x = 25,709,678.56
  5. Step 5: Solve for x
    x = 25,709,678.56/8,051.96
  6. Step 6: Final answer
    x = 3,192.97

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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.