Home / 3,186.54-4,778.73-1,954.53

Finding the Fourth Proportional to 3,186.54, 4,778.73 and 1,954.53

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Solution

The fourth proportional to 3,186.54, 4,778.73 and 1,954.53 is: 2,931.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,186.54 : 4,778.73 = 1,954.53 : x
  2. Step 2: Convert to fraction form
    3,186.54/4,778.73 = 1,954.53/x
  3. Step 3: Cross multiply
    3,186.54x = 4,778.73 × 1,954.53
  4. Step 4: Simplify right side
    3,186.54x = 9,340,171.15
  5. Step 5: Solve for x
    x = 9,340,171.15/3,186.54
  6. Step 6: Final answer
    x = 2,931.13

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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.