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Finding the Fourth Proportional to 1,152.55, 1,728.22 and 536.55

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Solution

The fourth proportional to 1,152.55, 1,728.22 and 536.55 is: 804.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,152.55 : 1,728.22 = 536.55 : x
  2. Step 2: Convert to fraction form
    1,152.55/1,728.22 = 536.55/x
  3. Step 3: Cross multiply
    1,152.55x = 1,728.22 × 536.55
  4. Step 4: Simplify right side
    1,152.55x = 927,276.44
  5. Step 5: Solve for x
    x = 927,276.44/1,152.55
  6. Step 6: Final answer
    x = 804.54

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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.