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Finding the Fourth Proportional to 1,195.84, 1,650.82 and 803.14

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Solution

The fourth proportional to 1,195.84, 1,650.82 and 803.14 is: 1,108.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,195.84 : 1,650.82 = 803.14 : x
  2. Step 2: Convert to fraction form
    1,195.84/1,650.82 = 803.14/x
  3. Step 3: Cross multiply
    1,195.84x = 1,650.82 × 803.14
  4. Step 4: Simplify right side
    1,195.84x = 1,325,839.57
  5. Step 5: Solve for x
    x = 1,325,839.57/1,195.84
  6. Step 6: Final answer
    x = 1,108.71

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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.