Home / 3,084.08-4,256-1,686.88

Finding the Fourth Proportional to 3,084.08, 4,256 and 1,686.88

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Solution

The fourth proportional to 3,084.08, 4,256 and 1,686.88 is: 2,327.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,084.08 : 4,256 = 1,686.88 : x
  2. Step 2: Convert to fraction form
    3,084.08/4,256 = 1,686.88/x
  3. Step 3: Cross multiply
    3,084.08x = 4,256 × 1,686.88
  4. Step 4: Simplify right side
    3,084.08x = 7,179,361.28
  5. Step 5: Solve for x
    x = 7,179,361.28/3,084.08
  6. Step 6: Final answer
    x = 2,327.88

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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.