Home / 3,678.38-5,084.36-3,179.93

Finding the Fourth Proportional to 3,678.38, 5,084.36 and 3,179.93

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Solution

The fourth proportional to 3,678.38, 5,084.36 and 3,179.93 is: 4,395.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,678.38 : 5,084.36 = 3,179.93 : x
  2. Step 2: Convert to fraction form
    3,678.38/5,084.36 = 3,179.93/x
  3. Step 3: Cross multiply
    3,678.38x = 5,084.36 × 3,179.93
  4. Step 4: Simplify right side
    3,678.38x = 16,167,867.57
  5. Step 5: Solve for x
    x = 16,167,867.57/3,678.38
  6. Step 6: Final answer
    x = 4,395.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.