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Finding the Fourth Proportional to 1,168.50, 1,752.14 and 552.05

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Solution

The fourth proportional to 1,168.50, 1,752.14 and 552.05 is: 827.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,168.50 : 1,752.14 = 552.05 : x
  2. Step 2: Convert to fraction form
    1,168.50/1,752.14 = 552.05/x
  3. Step 3: Cross multiply
    1,168.50x = 1,752.14 × 552.05
  4. Step 4: Simplify right side
    1,168.50x = 967,268.08
  5. Step 5: Solve for x
    x = 967,268.08/1,168.50
  6. Step 6: Final answer
    x = 827.78

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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.