Home / 3,784.08-5,221.56-2,105.04

Finding the Fourth Proportional to 3,784.08, 5,221.56 and 2,105.04

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Solution

The fourth proportional to 3,784.08, 5,221.56 and 2,105.04 is: 2,904.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,784.08 : 5,221.56 = 2,105.04 : x
  2. Step 2: Convert to fraction form
    3,784.08/5,221.56 = 2,105.04/x
  3. Step 3: Cross multiply
    3,784.08x = 5,221.56 × 2,105.04
  4. Step 4: Simplify right side
    3,784.08x = 10,991,592.66
  5. Step 5: Solve for x
    x = 10,991,592.66/3,784.08
  6. Step 6: Final answer
    x = 2,904.69

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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.