Home / 5,129.39-7,076.06-3,240.07

Finding the Fourth Proportional to 5,129.39, 7,076.06 and 3,240.07

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Solution

The fourth proportional to 5,129.39, 7,076.06 and 3,240.07 is: 4,469.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,129.39 : 7,076.06 = 3,240.07 : x
  2. Step 2: Convert to fraction form
    5,129.39/7,076.06 = 3,240.07/x
  3. Step 3: Cross multiply
    5,129.39x = 7,076.06 × 3,240.07
  4. Step 4: Simplify right side
    5,129.39x = 22,926,907.98
  5. Step 5: Solve for x
    x = 22,926,907.98/5,129.39
  6. Step 6: Final answer
    x = 4,469.71

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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.