Home / 3,815.26-5,721.93-1,216.86

Finding the Fourth Proportional to 3,815.26, 5,721.93 and 1,216.86

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Solution

The fourth proportional to 3,815.26, 5,721.93 and 1,216.86 is: 1,824.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,815.26 : 5,721.93 = 1,216.86 : x
  2. Step 2: Convert to fraction form
    3,815.26/5,721.93 = 1,216.86/x
  3. Step 3: Cross multiply
    3,815.26x = 5,721.93 × 1,216.86
  4. Step 4: Simplify right side
    3,815.26x = 6,962,787.74
  5. Step 5: Solve for x
    x = 6,962,787.74/3,815.26
  6. Step 6: Final answer
    x = 1,824.98

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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.