Home / 6,734.36-9,294.78-3,940.76

Finding the Fourth Proportional to 6,734.36, 9,294.78 and 3,940.76

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Solution

The fourth proportional to 6,734.36, 9,294.78 and 3,940.76 is: 5,439.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,734.36 : 9,294.78 = 3,940.76 : x
  2. Step 2: Convert to fraction form
    6,734.36/9,294.78 = 3,940.76/x
  3. Step 3: Cross multiply
    6,734.36x = 9,294.78 × 3,940.76
  4. Step 4: Simplify right side
    6,734.36x = 36,628,497.23
  5. Step 5: Solve for x
    x = 36,628,497.23/6,734.36
  6. Step 6: Final answer
    x = 5,439.05

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1.5x scale

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.