Home / 3,872.45-5,343.95-2,104.07

Finding the Fourth Proportional to 3,872.45, 5,343.95 and 2,104.07

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Solution

The fourth proportional to 3,872.45, 5,343.95 and 2,104.07 is: 2,903.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,872.45 : 5,343.95 = 2,104.07 : x
  2. Step 2: Convert to fraction form
    3,872.45/5,343.95 = 2,104.07/x
  3. Step 3: Cross multiply
    3,872.45x = 5,343.95 × 2,104.07
  4. Step 4: Simplify right side
    3,872.45x = 11,244,044.88
  5. Step 5: Solve for x
    x = 11,244,044.88/3,872.45
  6. Step 6: Final answer
    x = 2,903.60

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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.