Home / 6,723.78-9,279.42-3,739.56

Finding the Fourth Proportional to 6,723.78, 9,279.42 and 3,739.56

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Solution

The fourth proportional to 6,723.78, 9,279.42 and 3,739.56 is: 5,160.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,723.78 : 9,279.42 = 3,739.56 : x
  2. Step 2: Convert to fraction form
    6,723.78/9,279.42 = 3,739.56/x
  3. Step 3: Cross multiply
    6,723.78x = 9,279.42 × 3,739.56
  4. Step 4: Simplify right side
    6,723.78x = 34,700,947.86
  5. Step 5: Solve for x
    x = 34,700,947.86/6,723.78
  6. Step 6: Final answer
    x = 5,160.93

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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.