Home / 3,921.42-5,878.98-2,276.04

Finding the Fourth Proportional to 3,921.42, 5,878.98 and 2,276.04

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Solution

The fourth proportional to 3,921.42, 5,878.98 and 2,276.04 is: 3,412.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,921.42 : 5,878.98 = 2,276.04 : x
  2. Step 2: Convert to fraction form
    3,921.42/5,878.98 = 2,276.04/x
  3. Step 3: Cross multiply
    3,921.42x = 5,878.98 × 2,276.04
  4. Step 4: Simplify right side
    3,921.42x = 13,380,793.64
  5. Step 5: Solve for x
    x = 13,380,793.64/3,921.42
  6. Step 6: Final answer
    x = 3,412.23

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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.