Home / 3,838.02-5,758.20-1,372.80

Finding the Fourth Proportional to 3,838.02, 5,758.20 and 1,372.80

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Solution

The fourth proportional to 3,838.02, 5,758.20 and 1,372.80 is: 2,059.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,838.02 : 5,758.20 = 1,372.80 : x
  2. Step 2: Convert to fraction form
    3,838.02/5,758.20 = 1,372.80/x
  3. Step 3: Cross multiply
    3,838.02x = 5,758.20 × 1,372.80
  4. Step 4: Simplify right side
    3,838.02x = 7,904,856.96
  5. Step 5: Solve for x
    x = 7,904,856.96/3,838.02
  6. Step 6: Final answer
    x = 2,059.62

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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.