Home / 2,591.37-3,886.92-1,129.59

Finding the Fourth Proportional to 2,591.37, 3,886.92 and 1,129.59

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Solution

The fourth proportional to 2,591.37, 3,886.92 and 1,129.59 is: 1,694.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,591.37 : 3,886.92 = 1,129.59 : x
  2. Step 2: Convert to fraction form
    2,591.37/3,886.92 = 1,129.59/x
  3. Step 3: Cross multiply
    2,591.37x = 3,886.92 × 1,129.59
  4. Step 4: Simplify right side
    2,591.37x = 4,390,625.96
  5. Step 5: Solve for x
    x = 4,390,625.96/2,591.37
  6. Step 6: Final answer
    x = 1,694.33

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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.