Home / 5,168.78-7,129.82-3,277.02

Finding the Fourth Proportional to 5,168.78, 7,129.82 and 3,277.02

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Solution

The fourth proportional to 5,168.78, 7,129.82 and 3,277.02 is: 4,520.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,168.78 : 7,129.82 = 3,277.02 : x
  2. Step 2: Convert to fraction form
    5,168.78/7,129.82 = 3,277.02/x
  3. Step 3: Cross multiply
    5,168.78x = 7,129.82 × 3,277.02
  4. Step 4: Simplify right side
    5,168.78x = 23,364,597.67
  5. Step 5: Solve for x
    x = 23,364,597.67/5,168.78
  6. Step 6: Final answer
    x = 4,520.33

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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.