Home / 1,327.10-1,979.04-1,163.31

Finding the Fourth Proportional to 1,327.10, 1,979.04 and 1,163.31

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Solution

The fourth proportional to 1,327.10, 1,979.04 and 1,163.31 is: 1,734.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,327.10 : 1,979.04 = 1,163.31 : x
  2. Step 2: Convert to fraction form
    1,327.10/1,979.04 = 1,163.31/x
  3. Step 3: Cross multiply
    1,327.10x = 1,979.04 × 1,163.31
  4. Step 4: Simplify right side
    1,327.10x = 2,302,221.31
  5. Step 5: Solve for x
    x = 2,302,221.31/1,327.10
  6. Step 6: Final answer
    x = 1,734.78

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.