Home / 3,919.02-5,409.20-2,426.04

Finding the Fourth Proportional to 3,919.02, 5,409.20 and 2,426.04

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Solution

The fourth proportional to 3,919.02, 5,409.20 and 2,426.04 is: 3,348.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,919.02 : 5,409.20 = 2,426.04 : x
  2. Step 2: Convert to fraction form
    3,919.02/5,409.20 = 2,426.04/x
  3. Step 3: Cross multiply
    3,919.02x = 5,409.20 × 2,426.04
  4. Step 4: Simplify right side
    3,919.02x = 13,122,923.44
  5. Step 5: Solve for x
    x = 13,122,923.44/3,919.02
  6. Step 6: Final answer
    x = 3,348.52

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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.