Home / 2,188.67-3,284.22-1,639.22

Finding the Fourth Proportional to 2,188.67, 3,284.22 and 1,639.22

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Solution

The fourth proportional to 2,188.67, 3,284.22 and 1,639.22 is: 2,459.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,188.67 : 3,284.22 = 1,639.22 : x
  2. Step 2: Convert to fraction form
    2,188.67/3,284.22 = 1,639.22/x
  3. Step 3: Cross multiply
    2,188.67x = 3,284.22 × 1,639.22
  4. Step 4: Simplify right side
    2,188.67x = 5,383,559.11
  5. Step 5: Solve for x
    x = 5,383,559.11/2,188.67
  6. Step 6: Final answer
    x = 2,459.74

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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.