Home / 1,629.26-2,248.77-931.04

Finding the Fourth Proportional to 1,629.26, 2,248.77 and 931.04

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Solution

The fourth proportional to 1,629.26, 2,248.77 and 931.04 is: 1,285.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,629.26 : 2,248.77 = 931.04 : x
  2. Step 2: Convert to fraction form
    1,629.26/2,248.77 = 931.04/x
  3. Step 3: Cross multiply
    1,629.26x = 2,248.77 × 931.04
  4. Step 4: Simplify right side
    1,629.26x = 2,093,694.82
  5. Step 5: Solve for x
    x = 2,093,694.82/1,629.26
  6. Step 6: Final answer
    x = 1,285.06

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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.