Home / 3,985.38-5,976.36-1,519.56

Finding the Fourth Proportional to 3,985.38, 5,976.36 and 1,519.56

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Solution

The fourth proportional to 3,985.38, 5,976.36 and 1,519.56 is: 2,278.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,985.38 : 5,976.36 = 1,519.56 : x
  2. Step 2: Convert to fraction form
    3,985.38/5,976.36 = 1,519.56/x
  3. Step 3: Cross multiply
    3,985.38x = 5,976.36 × 1,519.56
  4. Step 4: Simplify right side
    3,985.38x = 9,081,437.60
  5. Step 5: Solve for x
    x = 9,081,437.60/3,985.38
  6. Step 6: Final answer
    x = 2,278.69

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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.