Home / 3,486.12-5,228.79-1,020.96

Finding the Fourth Proportional to 3,486.12, 5,228.79 and 1,020.96

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Solution

The fourth proportional to 3,486.12, 5,228.79 and 1,020.96 is: 1,531.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,486.12 : 5,228.79 = 1,020.96 : x
  2. Step 2: Convert to fraction form
    3,486.12/5,228.79 = 1,020.96/x
  3. Step 3: Cross multiply
    3,486.12x = 5,228.79 × 1,020.96
  4. Step 4: Simplify right side
    3,486.12x = 5,338,385.44
  5. Step 5: Solve for x
    x = 5,338,385.44/3,486.12
  6. Step 6: Final answer
    x = 1,531.33

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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.