Home / 3,918.05-5,878.79-1,452.34

Finding the Fourth Proportional to 3,918.05, 5,878.79 and 1,452.34

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Solution

The fourth proportional to 3,918.05, 5,878.79 and 1,452.34 is: 2,179.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,918.05 : 5,878.79 = 1,452.34 : x
  2. Step 2: Convert to fraction form
    3,918.05/5,878.79 = 1,452.34/x
  3. Step 3: Cross multiply
    3,918.05x = 5,878.79 × 1,452.34
  4. Step 4: Simplify right side
    3,918.05x = 8,538,001.87
  5. Step 5: Solve for x
    x = 8,538,001.87/3,918.05
  6. Step 6: Final answer
    x = 2,179.15

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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.