Home / 3,185.12-4,770.66-2,490.68

Finding the Fourth Proportional to 3,185.12, 4,770.66 and 2,490.68

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Solution

The fourth proportional to 3,185.12, 4,770.66 and 2,490.68 is: 3,730.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,185.12 : 4,770.66 = 2,490.68 : x
  2. Step 2: Convert to fraction form
    3,185.12/4,770.66 = 2,490.68/x
  3. Step 3: Cross multiply
    3,185.12x = 4,770.66 × 2,490.68
  4. Step 4: Simplify right side
    3,185.12x = 11,882,187.45
  5. Step 5: Solve for x
    x = 11,882,187.45/3,185.12
  6. Step 6: Final answer
    x = 3,730.53

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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.