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Finding the Fourth Proportional to 1,604.50, 2,214.25 and 905.88

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Solution

The fourth proportional to 1,604.50, 2,214.25 and 905.88 is: 1,250.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,604.50 : 2,214.25 = 905.88 : x
  2. Step 2: Convert to fraction form
    1,604.50/2,214.25 = 905.88/x
  3. Step 3: Cross multiply
    1,604.50x = 2,214.25 × 905.88
  4. Step 4: Simplify right side
    1,604.50x = 2,005,844.79
  5. Step 5: Solve for x
    x = 2,005,844.79/1,604.50
  6. Step 6: Final answer
    x = 1,250.14

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.