Home / 5,168.64-7,134.36-3,305.64

Finding the Fourth Proportional to 5,168.64, 7,134.36 and 3,305.64

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Solution

The fourth proportional to 5,168.64, 7,134.36 and 3,305.64 is: 4,562.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,168.64 : 7,134.36 = 3,305.64 : x
  2. Step 2: Convert to fraction form
    5,168.64/7,134.36 = 3,305.64/x
  3. Step 3: Cross multiply
    5,168.64x = 7,134.36 × 3,305.64
  4. Step 4: Simplify right side
    5,168.64x = 23,583,625.79
  5. Step 5: Solve for x
    x = 23,583,625.79/5,168.64
  6. Step 6: Final answer
    x = 4,562.83

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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.