Home / 1,625.89-2,439.38-1,080.22

Finding the Fourth Proportional to 1,625.89, 2,439.38 and 1,080.22

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Solution

The fourth proportional to 1,625.89, 2,439.38 and 1,080.22 is: 1,620.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,625.89 : 2,439.38 = 1,080.22 : x
  2. Step 2: Convert to fraction form
    1,625.89/2,439.38 = 1,080.22/x
  3. Step 3: Cross multiply
    1,625.89x = 2,439.38 × 1,080.22
  4. Step 4: Simplify right side
    1,625.89x = 2,635,067.06
  5. Step 5: Solve for x
    x = 2,635,067.06/1,625.89
  6. Step 6: Final answer
    x = 1,620.69

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1.5x scale

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.