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Finding the Fourth Proportional to 941.51, 1,299.50 and 548.59

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Solution

The fourth proportional to 941.51, 1,299.50 and 548.59 is: 757.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    941.51 : 1,299.50 = 548.59 : x
  2. Step 2: Convert to fraction form
    941.51/1,299.50 = 548.59/x
  3. Step 3: Cross multiply
    941.51x = 1,299.50 × 548.59
  4. Step 4: Simplify right side
    941.51x = 712,892.71
  5. Step 5: Solve for x
    x = 712,892.71/941.51
  6. Step 6: Final answer
    x = 757.18

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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.