Home / 3,828.12-5,743.80-1,489.76

Finding the Fourth Proportional to 3,828.12, 5,743.80 and 1,489.76

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Solution

The fourth proportional to 3,828.12, 5,743.80 and 1,489.76 is: 2,235.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,828.12 : 5,743.80 = 1,489.76 : x
  2. Step 2: Convert to fraction form
    3,828.12/5,743.80 = 1,489.76/x
  3. Step 3: Cross multiply
    3,828.12x = 5,743.80 × 1,489.76
  4. Step 4: Simplify right side
    3,828.12x = 8,556,854.77
  5. Step 5: Solve for x
    x = 8,556,854.77/3,828.12
  6. Step 6: Final answer
    x = 2,235.26

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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.