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Finding the Fourth Proportional to 7,775.55, 11,659.82 and 2,227.62

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Solution

The fourth proportional to 7,775.55, 11,659.82 and 2,227.62 is: 3,340.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,775.55 : 11,659.82 = 2,227.62 : x
  2. Step 2: Convert to fraction form
    7,775.55/11,659.82 = 2,227.62/x
  3. Step 3: Cross multiply
    7,775.55x = 11,659.82 × 2,227.62
  4. Step 4: Simplify right side
    7,775.55x = 25,973,680.81
  5. Step 5: Solve for x
    x = 25,973,680.81/7,775.55
  6. Step 6: Final answer
    x = 3,340.43

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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.