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Finding the Fourth Proportional to 1,076.14, 1,484.85 and 633.94

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Solution

The fourth proportional to 1,076.14, 1,484.85 and 633.94 is: 874.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,076.14 : 1,484.85 = 633.94 : x
  2. Step 2: Convert to fraction form
    1,076.14/1,484.85 = 633.94/x
  3. Step 3: Cross multiply
    1,076.14x = 1,484.85 × 633.94
  4. Step 4: Simplify right side
    1,076.14x = 941,305.81
  5. Step 5: Solve for x
    x = 941,305.81/1,076.14
  6. Step 6: Final answer
    x = 874.71

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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.