Home / 2,255.12-3,109.08-1,625.12

Finding the Fourth Proportional to 2,255.12, 3,109.08 and 1,625.12

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Solution

The fourth proportional to 2,255.12, 3,109.08 and 1,625.12 is: 2,240.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,255.12 : 3,109.08 = 1,625.12 : x
  2. Step 2: Convert to fraction form
    2,255.12/3,109.08 = 1,625.12/x
  3. Step 3: Cross multiply
    2,255.12x = 3,109.08 × 1,625.12
  4. Step 4: Simplify right side
    2,255.12x = 5,052,628.09
  5. Step 5: Solve for x
    x = 5,052,628.09/2,255.12
  6. Step 6: Final answer
    x = 2,240.51

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1.5x scale

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.