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Finding the Fourth Proportional to 2,219.76, 3,329.70 and 576.27

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Solution

The fourth proportional to 2,219.76, 3,329.70 and 576.27 is: 864.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,219.76 : 3,329.70 = 576.27 : x
  2. Step 2: Convert to fraction form
    2,219.76/3,329.70 = 576.27/x
  3. Step 3: Cross multiply
    2,219.76x = 3,329.70 × 576.27
  4. Step 4: Simplify right side
    2,219.76x = 1,918,806.22
  5. Step 5: Solve for x
    x = 1,918,806.22/2,219.76
  6. Step 6: Final answer
    x = 864.42

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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.