Home / 3,251.75-4,486.38-1,992.15

Finding the Fourth Proportional to 3,251.75, 4,486.38 and 1,992.15

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Solution

The fourth proportional to 3,251.75, 4,486.38 and 1,992.15 is: 2,748.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,251.75 : 4,486.38 = 1,992.15 : x
  2. Step 2: Convert to fraction form
    3,251.75/4,486.38 = 1,992.15/x
  3. Step 3: Cross multiply
    3,251.75x = 4,486.38 × 1,992.15
  4. Step 4: Simplify right side
    3,251.75x = 8,937,541.92
  5. Step 5: Solve for x
    x = 8,937,541.92/3,251.75
  6. Step 6: Final answer
    x = 2,748.54

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1.5x scale

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.