Home / 2,054.26-3,081.18-1,129.51

Finding the Fourth Proportional to 2,054.26, 3,081.18 and 1,129.51

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Solution

The fourth proportional to 2,054.26, 3,081.18 and 1,129.51 is: 1,694.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,054.26 : 3,081.18 = 1,129.51 : x
  2. Step 2: Convert to fraction form
    2,054.26/3,081.18 = 1,129.51/x
  3. Step 3: Cross multiply
    2,054.26x = 3,081.18 × 1,129.51
  4. Step 4: Simplify right side
    2,054.26x = 3,480,208.22
  5. Step 5: Solve for x
    x = 3,480,208.22/2,054.26
  6. Step 6: Final answer
    x = 1,694.15

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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.