Home / 3,096.20-4,279.56-2,720.36

Finding the Fourth Proportional to 3,096.20, 4,279.56 and 2,720.36

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Solution

The fourth proportional to 3,096.20, 4,279.56 and 2,720.36 is: 3,760.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,096.20 : 4,279.56 = 2,720.36 : x
  2. Step 2: Convert to fraction form
    3,096.20/4,279.56 = 2,720.36/x
  3. Step 3: Cross multiply
    3,096.20x = 4,279.56 × 2,720.36
  4. Step 4: Simplify right side
    3,096.20x = 11,641,943.84
  5. Step 5: Solve for x
    x = 11,641,943.84/3,096.20
  6. Step 6: Final answer
    x = 3,760.07

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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.