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Finding the Fourth Proportional to 941.77, 1,299.62 and 516.38

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Solution

The fourth proportional to 941.77, 1,299.62 and 516.38 is: 712.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    941.77 : 1,299.62 = 516.38 : x
  2. Step 2: Convert to fraction form
    941.77/1,299.62 = 516.38/x
  3. Step 3: Cross multiply
    941.77x = 1,299.62 × 516.38
  4. Step 4: Simplify right side
    941.77x = 671,093.29
  5. Step 5: Solve for x
    x = 671,093.29/941.77
  6. Step 6: Final answer
    x = 712.59

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Double scale
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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.