Home / 7,891.28-11,837.22-2,626.76

Finding the Fourth Proportional to 7,891.28, 11,837.22 and 2,626.76

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Solution

The fourth proportional to 7,891.28, 11,837.22 and 2,626.76 is: 3,940.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,891.28 : 11,837.22 = 2,626.76 : x
  2. Step 2: Convert to fraction form
    7,891.28/11,837.22 = 2,626.76/x
  3. Step 3: Cross multiply
    7,891.28x = 11,837.22 × 2,626.76
  4. Step 4: Simplify right side
    7,891.28x = 31,093,536.01
  5. Step 5: Solve for x
    x = 31,093,536.01/7,891.28
  6. Step 6: Final answer
    x = 3,940.24

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1.5x scale

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.