Home / 5,251.44-7,243.79-3,125.55

Finding the Fourth Proportional to 5,251.44, 7,243.79 and 3,125.55

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Solution

The fourth proportional to 5,251.44, 7,243.79 and 3,125.55 is: 4,311.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,251.44 : 7,243.79 = 3,125.55 : x
  2. Step 2: Convert to fraction form
    5,251.44/7,243.79 = 3,125.55/x
  3. Step 3: Cross multiply
    5,251.44x = 7,243.79 × 3,125.55
  4. Step 4: Simplify right side
    5,251.44x = 22,640,839.37
  5. Step 5: Solve for x
    x = 22,640,839.37/5,251.44
  6. Step 6: Final answer
    x = 4,311.36

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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.