Home / 5,168.06-7,129.64-3,443.75

Finding the Fourth Proportional to 5,168.06, 7,129.64 and 3,443.75

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Solution

The fourth proportional to 5,168.06, 7,129.64 and 3,443.75 is: 4,750.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,168.06 : 7,129.64 = 3,443.75 : x
  2. Step 2: Convert to fraction form
    5,168.06/7,129.64 = 3,443.75/x
  3. Step 3: Cross multiply
    5,168.06x = 7,129.64 × 3,443.75
  4. Step 4: Simplify right side
    5,168.06x = 24,552,644.88
  5. Step 5: Solve for x
    x = 24,552,644.88/5,168.06
  6. Step 6: Final answer
    x = 4,750.85

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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.