Home / 3,918.91-5,877.79-1,144.84

Finding the Fourth Proportional to 3,918.91, 5,877.79 and 1,144.84

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Solution

The fourth proportional to 3,918.91, 5,877.79 and 1,144.84 is: 1,717.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,918.91 : 5,877.79 = 1,144.84 : x
  2. Step 2: Convert to fraction form
    3,918.91/5,877.79 = 1,144.84/x
  3. Step 3: Cross multiply
    3,918.91x = 5,877.79 × 1,144.84
  4. Step 4: Simplify right side
    3,918.91x = 6,729,129.10
  5. Step 5: Solve for x
    x = 6,729,129.10/3,918.91
  6. Step 6: Final answer
    x = 1,717.09

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1.5x scale

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.