Home / 3,190.73-4,785.66-1,215.81

Finding the Fourth Proportional to 3,190.73, 4,785.66 and 1,215.81

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Solution

The fourth proportional to 3,190.73, 4,785.66 and 1,215.81 is: 1,823.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,190.73 : 4,785.66 = 1,215.81 : x
  2. Step 2: Convert to fraction form
    3,190.73/4,785.66 = 1,215.81/x
  3. Step 3: Cross multiply
    3,190.73x = 4,785.66 × 1,215.81
  4. Step 4: Simplify right side
    3,190.73x = 5,818,453.28
  5. Step 5: Solve for x
    x = 5,818,453.28/3,190.73
  6. Step 6: Final answer
    x = 1,823.55

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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.