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Finding the Fourth Proportional to 941.58, 1,299.39 and 548.59

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Solution

The fourth proportional to 941.58, 1,299.39 and 548.59 is: 757.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    941.58 : 1,299.39 = 548.59 : x
  2. Step 2: Convert to fraction form
    941.58/1,299.39 = 548.59/x
  3. Step 3: Cross multiply
    941.58x = 1,299.39 × 548.59
  4. Step 4: Simplify right side
    941.58x = 712,832.36
  5. Step 5: Solve for x
    x = 712,832.36/941.58
  6. Step 6: Final answer
    x = 757.06

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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.