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Finding the Fourth Proportional to 1,096, 1,512.66 and 630.16

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Solution

The fourth proportional to 1,096, 1,512.66 and 630.16 is: 869.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,096 : 1,512.66 = 630.16 : x
  2. Step 2: Convert to fraction form
    1,096/1,512.66 = 630.16/x
  3. Step 3: Cross multiply
    1,096x = 1,512.66 × 630.16
  4. Step 4: Simplify right side
    1,096x = 953,217.83
  5. Step 5: Solve for x
    x = 953,217.83/1,096
  6. Step 6: Final answer
    x = 869.72

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.