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Finding the Fourth Proportional to 3,086.73, 4,628.97 and 894.78

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Solution

The fourth proportional to 3,086.73, 4,628.97 and 894.78 is: 1,341.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,086.73 : 4,628.97 = 894.78 : x
  2. Step 2: Convert to fraction form
    3,086.73/4,628.97 = 894.78/x
  3. Step 3: Cross multiply
    3,086.73x = 4,628.97 × 894.78
  4. Step 4: Simplify right side
    3,086.73x = 4,141,909.78
  5. Step 5: Solve for x
    x = 4,141,909.78/3,086.73
  6. Step 6: Final answer
    x = 1,341.84

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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.