Home / 6,172.56-8,517.12-3,655.44

Finding the Fourth Proportional to 6,172.56, 8,517.12 and 3,655.44

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Solution

The fourth proportional to 6,172.56, 8,517.12 and 3,655.44 is: 5,043.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,172.56 : 8,517.12 = 3,655.44 : x
  2. Step 2: Convert to fraction form
    6,172.56/8,517.12 = 3,655.44/x
  3. Step 3: Cross multiply
    6,172.56x = 8,517.12 × 3,655.44
  4. Step 4: Simplify right side
    6,172.56x = 31,133,821.13
  5. Step 5: Solve for x
    x = 31,133,821.13/6,172.56
  6. Step 6: Final answer
    x = 5,043.91

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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.