Home / 3,561.20-5,342.34-2,101.04

Finding the Fourth Proportional to 3,561.20, 5,342.34 and 2,101.04

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Solution

The fourth proportional to 3,561.20, 5,342.34 and 2,101.04 is: 3,151.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,561.20 : 5,342.34 = 2,101.04 : x
  2. Step 2: Convert to fraction form
    3,561.20/5,342.34 = 2,101.04/x
  3. Step 3: Cross multiply
    3,561.20x = 5,342.34 × 2,101.04
  4. Step 4: Simplify right side
    3,561.20x = 11,224,470.03
  5. Step 5: Solve for x
    x = 11,224,470.03/3,561.20
  6. Step 6: Final answer
    x = 3,151.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.