Home / 2,474.80-3,712.31-1,378.34

Finding the Fourth Proportional to 2,474.80, 3,712.31 and 1,378.34

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Solution

The fourth proportional to 2,474.80, 3,712.31 and 1,378.34 is: 2,067.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,474.80 : 3,712.31 = 1,378.34 : x
  2. Step 2: Convert to fraction form
    2,474.80/3,712.31 = 1,378.34/x
  3. Step 3: Cross multiply
    2,474.80x = 3,712.31 × 1,378.34
  4. Step 4: Simplify right side
    2,474.80x = 5,116,825.37
  5. Step 5: Solve for x
    x = 5,116,825.37/2,474.80
  6. Step 6: Final answer
    x = 2,067.57

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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.