Home / 3,181.12-4,766.49-1,618.97

Finding the Fourth Proportional to 3,181.12, 4,766.49 and 1,618.97

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Solution

The fourth proportional to 3,181.12, 4,766.49 and 1,618.97 is: 2,425.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,181.12 : 4,766.49 = 1,618.97 : x
  2. Step 2: Convert to fraction form
    3,181.12/4,766.49 = 1,618.97/x
  3. Step 3: Cross multiply
    3,181.12x = 4,766.49 × 1,618.97
  4. Step 4: Simplify right side
    3,181.12x = 7,716,816.23
  5. Step 5: Solve for x
    x = 7,716,816.23/3,181.12
  6. Step 6: Final answer
    x = 2,425.82

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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.