Home / 7,115.82-10,680.18-3,608.27

Finding the Fourth Proportional to 7,115.82, 10,680.18 and 3,608.27

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Solution

The fourth proportional to 7,115.82, 10,680.18 and 3,608.27 is: 5,415.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,115.82 : 10,680.18 = 3,608.27 : x
  2. Step 2: Convert to fraction form
    7,115.82/10,680.18 = 3,608.27/x
  3. Step 3: Cross multiply
    7,115.82x = 10,680.18 × 3,608.27
  4. Step 4: Simplify right side
    7,115.82x = 38,536,973.09
  5. Step 5: Solve for x
    x = 38,536,973.09/7,115.82
  6. Step 6: Final answer
    x = 5,415.68

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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.