Home / 1,310.33-1,804.97-1,120.66

Finding the Fourth Proportional to 1,310.33, 1,804.97 and 1,120.66

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Solution

The fourth proportional to 1,310.33, 1,804.97 and 1,120.66 is: 1,543.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,310.33 : 1,804.97 = 1,120.66 : x
  2. Step 2: Convert to fraction form
    1,310.33/1,804.97 = 1,120.66/x
  3. Step 3: Cross multiply
    1,310.33x = 1,804.97 × 1,120.66
  4. Step 4: Simplify right side
    1,310.33x = 2,022,755.97
  5. Step 5: Solve for x
    x = 2,022,755.97/1,310.33
  6. Step 6: Final answer
    x = 1,543.70

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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.