Home / 3,918.94-5,877.50-1,145.03

Finding the Fourth Proportional to 3,918.94, 5,877.50 and 1,145.03

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Solution

The fourth proportional to 3,918.94, 5,877.50 and 1,145.03 is: 1,717.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,918.94 : 5,877.50 = 1,145.03 : x
  2. Step 2: Convert to fraction form
    3,918.94/5,877.50 = 1,145.03/x
  3. Step 3: Cross multiply
    3,918.94x = 5,877.50 × 1,145.03
  4. Step 4: Simplify right side
    3,918.94x = 6,729,878.71
  5. Step 5: Solve for x
    x = 6,729,878.71/3,918.94
  6. Step 6: Final answer
    x = 1,717.27

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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.