Home / 5,273.28-7,279.46-3,149.56

Finding the Fourth Proportional to 5,273.28, 7,279.46 and 3,149.56

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Solution

The fourth proportional to 5,273.28, 7,279.46 and 3,149.56 is: 4,347.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,273.28 : 7,279.46 = 3,149.56 : x
  2. Step 2: Convert to fraction form
    5,273.28/7,279.46 = 3,149.56/x
  3. Step 3: Cross multiply
    5,273.28x = 7,279.46 × 3,149.56
  4. Step 4: Simplify right side
    5,273.28x = 22,927,096.04
  5. Step 5: Solve for x
    x = 22,927,096.04/5,273.28
  6. Step 6: Final answer
    x = 4,347.79

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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.