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Finding the Fourth Proportional to 4,051.65, 6,078.84 and 2,665.65

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Solution

The fourth proportional to 4,051.65, 6,078.84 and 2,665.65 is: 3,999.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,051.65 : 6,078.84 = 2,665.65 : x
  2. Step 2: Convert to fraction form
    4,051.65/6,078.84 = 2,665.65/x
  3. Step 3: Cross multiply
    4,051.65x = 6,078.84 × 2,665.65
  4. Step 4: Simplify right side
    4,051.65x = 16,204,059.85
  5. Step 5: Solve for x
    x = 16,204,059.85/4,051.65
  6. Step 6: Final answer
    x = 3,999.37

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1.5x scale

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.