Home / 3,928.68-5,888.15-1,979.82

Finding the Fourth Proportional to 3,928.68, 5,888.15 and 1,979.82

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Solution

The fourth proportional to 3,928.68, 5,888.15 and 1,979.82 is: 2,967.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,928.68 : 5,888.15 = 1,979.82 : x
  2. Step 2: Convert to fraction form
    3,928.68/5,888.15 = 1,979.82/x
  3. Step 3: Cross multiply
    3,928.68x = 5,888.15 × 1,979.82
  4. Step 4: Simplify right side
    3,928.68x = 11,657,447.69
  5. Step 5: Solve for x
    x = 11,657,447.69/3,928.68
  6. Step 6: Final answer
    x = 2,967.27

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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.