Home / 1,164.66-1,755.37-1,115.25

Finding the Fourth Proportional to 1,164.66, 1,755.37 and 1,115.25

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Solution

The fourth proportional to 1,164.66, 1,755.37 and 1,115.25 is: 1,680.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,164.66 : 1,755.37 = 1,115.25 : x
  2. Step 2: Convert to fraction form
    1,164.66/1,755.37 = 1,115.25/x
  3. Step 3: Cross multiply
    1,164.66x = 1,755.37 × 1,115.25
  4. Step 4: Simplify right side
    1,164.66x = 1,957,676.39
  5. Step 5: Solve for x
    x = 1,957,676.39/1,164.66
  6. Step 6: Final answer
    x = 1,680.90

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.