Home / 4,172.88-6,256.00-2,091.76

Finding the Fourth Proportional to 4,172.88, 6,256.00 and 2,091.76

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Solution

The fourth proportional to 4,172.88, 6,256.00 and 2,091.76 is: 3,135.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,172.88 : 6,256.00 = 2,091.76 : x
  2. Step 2: Convert to fraction form
    4,172.88/6,256.00 = 2,091.76/x
  3. Step 3: Cross multiply
    4,172.88x = 6,256.00 × 2,091.76
  4. Step 4: Simplify right side
    4,172.88x = 13,086,037.53
  5. Step 5: Solve for x
    x = 13,086,037.53/4,172.88
  6. Step 6: Final answer
    x = 3,135.97

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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.