Home / 1,201.05-1,790.82-1,179.18

Finding the Fourth Proportional to 1,201.05, 1,790.82 and 1,179.18

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Solution

The fourth proportional to 1,201.05, 1,790.82 and 1,179.18 is: 1,758.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,201.05 : 1,790.82 = 1,179.18 : x
  2. Step 2: Convert to fraction form
    1,201.05/1,790.82 = 1,179.18/x
  3. Step 3: Cross multiply
    1,201.05x = 1,790.82 × 1,179.18
  4. Step 4: Simplify right side
    1,201.05x = 2,111,699.13
  5. Step 5: Solve for x
    x = 2,111,699.13/1,201.05
  6. Step 6: Final answer
    x = 1,758.21

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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.