Home / 1,329.16-1,992.19-1,175.38

Finding the Fourth Proportional to 1,329.16, 1,992.19 and 1,175.38

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Solution

The fourth proportional to 1,329.16, 1,992.19 and 1,175.38 is: 1,761.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,329.16 : 1,992.19 = 1,175.38 : x
  2. Step 2: Convert to fraction form
    1,329.16/1,992.19 = 1,175.38/x
  3. Step 3: Cross multiply
    1,329.16x = 1,992.19 × 1,175.38
  4. Step 4: Simplify right side
    1,329.16x = 2,341,580.28
  5. Step 5: Solve for x
    x = 2,341,580.28/1,329.16
  6. Step 6: Final answer
    x = 1,761.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.