Home / 2,191.92-3,025.26-1,308.48

Finding the Fourth Proportional to 2,191.92, 3,025.26 and 1,308.48

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Solution

The fourth proportional to 2,191.92, 3,025.26 and 1,308.48 is: 1,805.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,191.92 : 3,025.26 = 1,308.48 : x
  2. Step 2: Convert to fraction form
    2,191.92/3,025.26 = 1,308.48/x
  3. Step 3: Cross multiply
    2,191.92x = 3,025.26 × 1,308.48
  4. Step 4: Simplify right side
    2,191.92x = 3,958,492.20
  5. Step 5: Solve for x
    x = 3,958,492.20/2,191.92
  6. Step 6: Final answer
    x = 1,805.95

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.