Home / 1,338.16-1,846.64-748.73

Finding the Fourth Proportional to 1,338.16, 1,846.64 and 748.73

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Solution

The fourth proportional to 1,338.16, 1,846.64 and 748.73 is: 1,033.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,338.16 : 1,846.64 = 748.73 : x
  2. Step 2: Convert to fraction form
    1,338.16/1,846.64 = 748.73/x
  3. Step 3: Cross multiply
    1,338.16x = 1,846.64 × 748.73
  4. Step 4: Simplify right side
    1,338.16x = 1,382,634.77
  5. Step 5: Solve for x
    x = 1,382,634.77/1,338.16
  6. Step 6: Final answer
    x = 1,033.24

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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.