Home / 3,231.18-4,849.19-1,257.12

Finding the Fourth Proportional to 3,231.18, 4,849.19 and 1,257.12

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Solution

The fourth proportional to 3,231.18, 4,849.19 and 1,257.12 is: 1,886.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,231.18 : 4,849.19 = 1,257.12 : x
  2. Step 2: Convert to fraction form
    3,231.18/4,849.19 = 1,257.12/x
  3. Step 3: Cross multiply
    3,231.18x = 4,849.19 × 1,257.12
  4. Step 4: Simplify right side
    3,231.18x = 6,096,007.45
  5. Step 5: Solve for x
    x = 6,096,007.45/3,231.18
  6. Step 6: Final answer
    x = 1,886.62

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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.