Home / 3,928.36-5,419.59-2,248.86

Finding the Fourth Proportional to 3,928.36, 5,419.59 and 2,248.86

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Solution

The fourth proportional to 3,928.36, 5,419.59 and 2,248.86 is: 3,102.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,928.36 : 5,419.59 = 2,248.86 : x
  2. Step 2: Convert to fraction form
    3,928.36/5,419.59 = 2,248.86/x
  3. Step 3: Cross multiply
    3,928.36x = 5,419.59 × 2,248.86
  4. Step 4: Simplify right side
    3,928.36x = 12,187,918.34
  5. Step 5: Solve for x
    x = 12,187,918.34/3,928.36
  6. Step 6: Final answer
    x = 3,102.54

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.