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Finding the Fourth Proportional to 1,169.55, 1,753.46 and 552.90

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Solution

The fourth proportional to 1,169.55, 1,753.46 and 552.90 is: 828.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,169.55 : 1,753.46 = 552.90 : x
  2. Step 2: Convert to fraction form
    1,169.55/1,753.46 = 552.90/x
  3. Step 3: Cross multiply
    1,169.55x = 1,753.46 × 552.90
  4. Step 4: Simplify right side
    1,169.55x = 969,485.27
  5. Step 5: Solve for x
    x = 969,485.27/1,169.55
  6. Step 6: Final answer
    x = 828.94

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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.