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Finding the Fourth Proportional to 995.11, 1,372.59 and 758.19

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Solution

The fourth proportional to 995.11, 1,372.59 and 758.19 is: 1,045.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    995.11 : 1,372.59 = 758.19 : x
  2. Step 2: Convert to fraction form
    995.11/1,372.59 = 758.19/x
  3. Step 3: Cross multiply
    995.11x = 1,372.59 × 758.19
  4. Step 4: Simplify right side
    995.11x = 1,040,684.01
  5. Step 5: Solve for x
    x = 1,040,684.01/995.11
  6. Step 6: Final answer
    x = 1,045.80

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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.