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Finding the Fourth Proportional to 1,096.30, 1,644.45 and 576.10

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Solution

The fourth proportional to 1,096.30, 1,644.45 and 576.10 is: 864.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,096.30 : 1,644.45 = 576.10 : x
  2. Step 2: Convert to fraction form
    1,096.30/1,644.45 = 576.10/x
  3. Step 3: Cross multiply
    1,096.30x = 1,644.45 × 576.10
  4. Step 4: Simplify right side
    1,096.30x = 947,367.65
  5. Step 5: Solve for x
    x = 947,367.65/1,096.30
  6. Step 6: Final answer
    x = 864.15

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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.