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Finding the Fourth Proportional to 1,228.86, 1,841.24 and 534.49

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Solution

The fourth proportional to 1,228.86, 1,841.24 and 534.49 is: 800.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,228.86 : 1,841.24 = 534.49 : x
  2. Step 2: Convert to fraction form
    1,228.86/1,841.24 = 534.49/x
  3. Step 3: Cross multiply
    1,228.86x = 1,841.24 × 534.49
  4. Step 4: Simplify right side
    1,228.86x = 984,118.09
  5. Step 5: Solve for x
    x = 984,118.09/1,228.86
  6. Step 6: Final answer
    x = 800.84

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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.