Home / 4,256.40-6,383.88-1,791.60

Finding the Fourth Proportional to 4,256.40, 6,383.88 and 1,791.60

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Solution

The fourth proportional to 4,256.40, 6,383.88 and 1,791.60 is: 2,687.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,256.40 : 6,383.88 = 1,791.60 : x
  2. Step 2: Convert to fraction form
    4,256.40/6,383.88 = 1,791.60/x
  3. Step 3: Cross multiply
    4,256.40x = 6,383.88 × 1,791.60
  4. Step 4: Simplify right side
    4,256.40x = 11,437,359.41
  5. Step 5: Solve for x
    x = 11,437,359.41/4,256.40
  6. Step 6: Final answer
    x = 2,687.10

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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.