Home / 6,891.28-10,334.72-2,942.46

Finding the Fourth Proportional to 6,891.28, 10,334.72 and 2,942.46

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Solution

The fourth proportional to 6,891.28, 10,334.72 and 2,942.46 is: 4,412.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,891.28 : 10,334.72 = 2,942.46 : x
  2. Step 2: Convert to fraction form
    6,891.28/10,334.72 = 2,942.46/x
  3. Step 3: Cross multiply
    6,891.28x = 10,334.72 × 2,942.46
  4. Step 4: Simplify right side
    6,891.28x = 30,409,507.57
  5. Step 5: Solve for x
    x = 30,409,507.57/6,891.28
  6. Step 6: Final answer
    x = 4,412.75

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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.