Home / 2,733.72-3,772.90-1,686

Finding the Fourth Proportional to 2,733.72, 3,772.90 and 1,686

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Solution

The fourth proportional to 2,733.72, 3,772.90 and 1,686 is: 2,326.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,733.72 : 3,772.90 = 1,686 : x
  2. Step 2: Convert to fraction form
    2,733.72/3,772.90 = 1,686/x
  3. Step 3: Cross multiply
    2,733.72x = 3,772.90 × 1,686
  4. Step 4: Simplify right side
    2,733.72x = 6,361,109.40
  5. Step 5: Solve for x
    x = 6,361,109.40/2,733.72
  6. Step 6: Final answer
    x = 2,326.91

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.