Home / 3,919.88-5,877.48-1,322.48

Finding the Fourth Proportional to 3,919.88, 5,877.48 and 1,322.48

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Solution

The fourth proportional to 3,919.88, 5,877.48 and 1,322.48 is: 1,982.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,919.88 : 5,877.48 = 1,322.48 : x
  2. Step 2: Convert to fraction form
    3,919.88/5,877.48 = 1,322.48/x
  3. Step 3: Cross multiply
    3,919.88x = 5,877.48 × 1,322.48
  4. Step 4: Simplify right side
    3,919.88x = 7,772,849.75
  5. Step 5: Solve for x
    x = 7,772,849.75/3,919.88
  6. Step 6: Final answer
    x = 1,982.93

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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.