Home / 3,872.02-5,343.35-2,103.62

Finding the Fourth Proportional to 3,872.02, 5,343.35 and 2,103.62

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Solution

The fourth proportional to 3,872.02, 5,343.35 and 2,103.62 is: 2,902.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,872.02 : 5,343.35 = 2,103.62 : x
  2. Step 2: Convert to fraction form
    3,872.02/5,343.35 = 2,103.62/x
  3. Step 3: Cross multiply
    3,872.02x = 5,343.35 × 2,103.62
  4. Step 4: Simplify right side
    3,872.02x = 11,240,377.93
  5. Step 5: Solve for x
    x = 11,240,377.93/3,872.02
  6. Step 6: Final answer
    x = 2,902.98

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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.