Home / 3,314.85-4,972.26-1,578.21

Finding the Fourth Proportional to 3,314.85, 4,972.26 and 1,578.21

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Solution

The fourth proportional to 3,314.85, 4,972.26 and 1,578.21 is: 2,367.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,314.85 : 4,972.26 = 1,578.21 : x
  2. Step 2: Convert to fraction form
    3,314.85/4,972.26 = 1,578.21/x
  3. Step 3: Cross multiply
    3,314.85x = 4,972.26 × 1,578.21
  4. Step 4: Simplify right side
    3,314.85x = 7,847,270.45
  5. Step 5: Solve for x
    x = 7,847,270.45/3,314.85
  6. Step 6: Final answer
    x = 2,367.31

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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.