Home / 2,161.68-3,245.76-2,086.08

Finding the Fourth Proportional to 2,161.68, 3,245.76 and 2,086.08

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Solution

The fourth proportional to 2,161.68, 3,245.76 and 2,086.08 is: 3,132.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,161.68 : 3,245.76 = 2,086.08 : x
  2. Step 2: Convert to fraction form
    2,161.68/3,245.76 = 2,086.08/x
  3. Step 3: Cross multiply
    2,161.68x = 3,245.76 × 2,086.08
  4. Step 4: Simplify right side
    2,161.68x = 6,770,915.02
  5. Step 5: Solve for x
    x = 6,770,915.02/2,161.68
  6. Step 6: Final answer
    x = 3,132.25

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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.