Home / 3,918.11-5,877.54-1,144.80

Finding the Fourth Proportional to 3,918.11, 5,877.54 and 1,144.80

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Solution

The fourth proportional to 3,918.11, 5,877.54 and 1,144.80 is: 1,717.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,918.11 : 5,877.54 = 1,144.80 : x
  2. Step 2: Convert to fraction form
    3,918.11/5,877.54 = 1,144.80/x
  3. Step 3: Cross multiply
    3,918.11x = 5,877.54 × 1,144.80
  4. Step 4: Simplify right side
    3,918.11x = 6,728,607.79
  5. Step 5: Solve for x
    x = 6,728,607.79/3,918.11
  6. Step 6: Final answer
    x = 1,717.31

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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.