Home / 1,180.44-1,628.66-738.36

Finding the Fourth Proportional to 1,180.44, 1,628.66 and 738.36

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Solution

The fourth proportional to 1,180.44, 1,628.66 and 738.36 is: 1,018.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,180.44 : 1,628.66 = 738.36 : x
  2. Step 2: Convert to fraction form
    1,180.44/1,628.66 = 738.36/x
  3. Step 3: Cross multiply
    1,180.44x = 1,628.66 × 738.36
  4. Step 4: Simplify right side
    1,180.44x = 1,202,537.40
  5. Step 5: Solve for x
    x = 1,202,537.40/1,180.44
  6. Step 6: Final answer
    x = 1,018.72

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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.