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Finding the Fourth Proportional to 1,073.94, 1,481.58 and 654.12

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Solution

The fourth proportional to 1,073.94, 1,481.58 and 654.12 is: 902.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,073.94 : 1,481.58 = 654.12 : x
  2. Step 2: Convert to fraction form
    1,073.94/1,481.58 = 654.12/x
  3. Step 3: Cross multiply
    1,073.94x = 1,481.58 × 654.12
  4. Step 4: Simplify right side
    1,073.94x = 969,131.11
  5. Step 5: Solve for x
    x = 969,131.11/1,073.94
  6. Step 6: Final answer
    x = 902.41

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Why These Related Problems?

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