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Finding the Fourth Proportional to 7,777.01, 11,665.96 and 2,231.21

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Solution

The fourth proportional to 7,777.01, 11,665.96 and 2,231.21 is: 3,346.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,777.01 : 11,665.96 = 2,231.21 : x
  2. Step 2: Convert to fraction form
    7,777.01/11,665.96 = 2,231.21/x
  3. Step 3: Cross multiply
    7,777.01x = 11,665.96 × 2,231.21
  4. Step 4: Simplify right side
    7,777.01x = 26,029,230.20
  5. Step 5: Solve for x
    x = 26,029,230.20/7,777.01
  6. Step 6: Final answer
    x = 3,346.94

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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.