Home / 3,918.38-5,878.54-1,944.93

Finding the Fourth Proportional to 3,918.38, 5,878.54 and 1,944.93

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Solution

The fourth proportional to 3,918.38, 5,878.54 and 1,944.93 is: 2,917.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,918.38 : 5,878.54 = 1,944.93 : x
  2. Step 2: Convert to fraction form
    3,918.38/5,878.54 = 1,944.93/x
  3. Step 3: Cross multiply
    3,918.38x = 5,878.54 × 1,944.93
  4. Step 4: Simplify right side
    3,918.38x = 11,433,373.28
  5. Step 5: Solve for x
    x = 11,433,373.28/3,918.38
  6. Step 6: Final answer
    x = 2,917.88

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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.