Home / 2,170.25-3,254.86-936.99

Finding the Fourth Proportional to 2,170.25, 3,254.86 and 936.99

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Solution

The fourth proportional to 2,170.25, 3,254.86 and 936.99 is: 1,405.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,170.25 : 3,254.86 = 936.99 : x
  2. Step 2: Convert to fraction form
    2,170.25/3,254.86 = 936.99/x
  3. Step 3: Cross multiply
    2,170.25x = 3,254.86 × 936.99
  4. Step 4: Simplify right side
    2,170.25x = 3,049,765.48
  5. Step 5: Solve for x
    x = 3,049,765.48/2,170.25
  6. Step 6: Final answer
    x = 1,405.26

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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.