Home / 3,821.10-5,731.65-3,669.90

Finding the Fourth Proportional to 3,821.10, 5,731.65 and 3,669.90

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Solution

The fourth proportional to 3,821.10, 5,731.65 and 3,669.90 is: 5,504.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,821.10 : 5,731.65 = 3,669.90 : x
  2. Step 2: Convert to fraction form
    3,821.10/5,731.65 = 3,669.90/x
  3. Step 3: Cross multiply
    3,821.10x = 5,731.65 × 3,669.90
  4. Step 4: Simplify right side
    3,821.10x = 21,034,582.34
  5. Step 5: Solve for x
    x = 21,034,582.34/3,821.10
  6. Step 6: Final answer
    x = 5,504.85

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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.