Home / 2,821.10-4,229.51-2,206.10

Finding the Fourth Proportional to 2,821.10, 4,229.51 and 2,206.10

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Solution

The fourth proportional to 2,821.10, 4,229.51 and 2,206.10 is: 3,307.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,821.10 : 4,229.51 = 2,206.10 : x
  2. Step 2: Convert to fraction form
    2,821.10/4,229.51 = 2,206.10/x
  3. Step 3: Cross multiply
    2,821.10x = 4,229.51 × 2,206.10
  4. Step 4: Simplify right side
    2,821.10x = 9,330,722.01
  5. Step 5: Solve for x
    x = 9,330,722.01/2,821.10
  6. Step 6: Final answer
    x = 3,307.48

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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.