Home / 6,782.49-9,360.41-3,912.12

Finding the Fourth Proportional to 6,782.49, 9,360.41 and 3,912.12

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Solution

The fourth proportional to 6,782.49, 9,360.41 and 3,912.12 is: 5,399.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,782.49 : 9,360.41 = 3,912.12 : x
  2. Step 2: Convert to fraction form
    6,782.49/9,360.41 = 3,912.12/x
  3. Step 3: Cross multiply
    6,782.49x = 9,360.41 × 3,912.12
  4. Step 4: Simplify right side
    6,782.49x = 36,619,027.61
  5. Step 5: Solve for x
    x = 36,619,027.61/6,782.49
  6. Step 6: Final answer
    x = 5,399.05

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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.