Home / 5,121.38-7,068.03-3,133.26

Finding the Fourth Proportional to 5,121.38, 7,068.03 and 3,133.26

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Solution

The fourth proportional to 5,121.38, 7,068.03 and 3,133.26 is: 4,324.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,121.38 : 7,068.03 = 3,133.26 : x
  2. Step 2: Convert to fraction form
    5,121.38/7,068.03 = 3,133.26/x
  3. Step 3: Cross multiply
    5,121.38x = 7,068.03 × 3,133.26
  4. Step 4: Simplify right side
    5,121.38x = 22,145,975.68
  5. Step 5: Solve for x
    x = 22,145,975.68/5,121.38
  6. Step 6: Final answer
    x = 4,324.22

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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.