Home / 1,256.07-1,729.73-1,175.85

Finding the Fourth Proportional to 1,256.07, 1,729.73 and 1,175.85

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Solution

The fourth proportional to 1,256.07, 1,729.73 and 1,175.85 is: 1,619.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,256.07 : 1,729.73 = 1,175.85 : x
  2. Step 2: Convert to fraction form
    1,256.07/1,729.73 = 1,175.85/x
  3. Step 3: Cross multiply
    1,256.07x = 1,729.73 × 1,175.85
  4. Step 4: Simplify right side
    1,256.07x = 2,033,890.65
  5. Step 5: Solve for x
    x = 2,033,890.65/1,256.07
  6. Step 6: Final answer
    x = 1,619.25

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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.