Home / 1,238.26-1,844.49-1,172.52

Finding the Fourth Proportional to 1,238.26, 1,844.49 and 1,172.52

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Solution

The fourth proportional to 1,238.26, 1,844.49 and 1,172.52 is: 1,746.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,238.26 : 1,844.49 = 1,172.52 : x
  2. Step 2: Convert to fraction form
    1,238.26/1,844.49 = 1,172.52/x
  3. Step 3: Cross multiply
    1,238.26x = 1,844.49 × 1,172.52
  4. Step 4: Simplify right side
    1,238.26x = 2,162,699.85
  5. Step 5: Solve for x
    x = 2,162,699.85/1,238.26
  6. Step 6: Final answer
    x = 1,746.56

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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.