Home / 1,730.26-2,589.72-1,080.64

Finding the Fourth Proportional to 1,730.26, 2,589.72 and 1,080.64

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Solution

The fourth proportional to 1,730.26, 2,589.72 and 1,080.64 is: 1,617.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,730.26 : 2,589.72 = 1,080.64 : x
  2. Step 2: Convert to fraction form
    1,730.26/2,589.72 = 1,080.64/x
  3. Step 3: Cross multiply
    1,730.26x = 2,589.72 × 1,080.64
  4. Step 4: Simplify right side
    1,730.26x = 2,798,555.02
  5. Step 5: Solve for x
    x = 2,798,555.02/1,730.26
  6. Step 6: Final answer
    x = 1,617.42

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.