Home / 5,279.59-7,286.06-2,921.73

Finding the Fourth Proportional to 5,279.59, 7,286.06 and 2,921.73

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Solution

The fourth proportional to 5,279.59, 7,286.06 and 2,921.73 is: 4,032.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,279.59 : 7,286.06 = 2,921.73 : x
  2. Step 2: Convert to fraction form
    5,279.59/7,286.06 = 2,921.73/x
  3. Step 3: Cross multiply
    5,279.59x = 7,286.06 × 2,921.73
  4. Step 4: Simplify right side
    5,279.59x = 21,287,921.05
  5. Step 5: Solve for x
    x = 21,287,921.05/5,279.59
  6. Step 6: Final answer
    x = 4,032.12

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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.