Home / 7,131.24-10,696.86-1,937.88

Finding the Fourth Proportional to 7,131.24, 10,696.86 and 1,937.88

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Solution

The fourth proportional to 7,131.24, 10,696.86 and 1,937.88 is: 2,906.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,131.24 : 10,696.86 = 1,937.88 : x
  2. Step 2: Convert to fraction form
    7,131.24/10,696.86 = 1,937.88/x
  3. Step 3: Cross multiply
    7,131.24x = 10,696.86 × 1,937.88
  4. Step 4: Simplify right side
    7,131.24x = 20,729,231.06
  5. Step 5: Solve for x
    x = 20,729,231.06/7,131.24
  6. Step 6: Final answer
    x = 2,906.82

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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.