Home / 5,160.73-7,121.38-3,036.33

Finding the Fourth Proportional to 5,160.73, 7,121.38 and 3,036.33

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Solution

The fourth proportional to 5,160.73, 7,121.38 and 3,036.33 is: 4,189.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,160.73 : 7,121.38 = 3,036.33 : x
  2. Step 2: Convert to fraction form
    5,160.73/7,121.38 = 3,036.33/x
  3. Step 3: Cross multiply
    5,160.73x = 7,121.38 × 3,036.33
  4. Step 4: Simplify right side
    5,160.73x = 21,622,859.74
  5. Step 5: Solve for x
    x = 21,622,859.74/5,160.73
  6. Step 6: Final answer
    x = 4,189.88

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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.