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Finding the Fourth Proportional to 7,608.08, 11,412.12 and 3,910.80

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Solution

The fourth proportional to 7,608.08, 11,412.12 and 3,910.80 is: 5,866.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,608.08 : 11,412.12 = 3,910.80 : x
  2. Step 2: Convert to fraction form
    7,608.08/11,412.12 = 3,910.80/x
  3. Step 3: Cross multiply
    7,608.08x = 11,412.12 × 3,910.80
  4. Step 4: Simplify right side
    7,608.08x = 44,630,518.90
  5. Step 5: Solve for x
    x = 44,630,518.90/7,608.08
  6. Step 6: Final answer
    x = 5,866.20

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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.