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Finding the Fourth Proportional to 2,227.53, 3,342.69 and 767.73

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Solution

The fourth proportional to 2,227.53, 3,342.69 and 767.73 is: 1,152.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,227.53 : 3,342.69 = 767.73 : x
  2. Step 2: Convert to fraction form
    2,227.53/3,342.69 = 767.73/x
  3. Step 3: Cross multiply
    2,227.53x = 3,342.69 × 767.73
  4. Step 4: Simplify right side
    2,227.53x = 2,566,283.39
  5. Step 5: Solve for x
    x = 2,566,283.39/2,227.53
  6. Step 6: Final answer
    x = 1,152.08

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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.