Home / 3,781.19-5,674.37-1,315.98

Finding the Fourth Proportional to 3,781.19, 5,674.37 and 1,315.98

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Solution

The fourth proportional to 3,781.19, 5,674.37 and 1,315.98 is: 1,974.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,781.19 : 5,674.37 = 1,315.98 : x
  2. Step 2: Convert to fraction form
    3,781.19/5,674.37 = 1,315.98/x
  3. Step 3: Cross multiply
    3,781.19x = 5,674.37 × 1,315.98
  4. Step 4: Simplify right side
    3,781.19x = 7,467,350.85
  5. Step 5: Solve for x
    x = 7,467,350.85/3,781.19
  6. Step 6: Final answer
    x = 1,974.87

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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.