Home / 3,635.67-5,455.10-2,821.02

Finding the Fourth Proportional to 3,635.67, 5,455.10 and 2,821.02

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Solution

The fourth proportional to 3,635.67, 5,455.10 and 2,821.02 is: 4,232.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,635.67 : 5,455.10 = 2,821.02 : x
  2. Step 2: Convert to fraction form
    3,635.67/5,455.10 = 2,821.02/x
  3. Step 3: Cross multiply
    3,635.67x = 5,455.10 × 2,821.02
  4. Step 4: Simplify right side
    3,635.67x = 15,388,946.20
  5. Step 5: Solve for x
    x = 15,388,946.20/3,635.67
  6. Step 6: Final answer
    x = 4,232.77

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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.