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Finding the Fourth Proportional to 1,033.48, 1,549 and 513.32

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Solution

The fourth proportional to 1,033.48, 1,549 and 513.32 is: 769.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,033.48 : 1,549 = 513.32 : x
  2. Step 2: Convert to fraction form
    1,033.48/1,549 = 513.32/x
  3. Step 3: Cross multiply
    1,033.48x = 1,549 × 513.32
  4. Step 4: Simplify right side
    1,033.48x = 795,132.68
  5. Step 5: Solve for x
    x = 795,132.68/1,033.48
  6. Step 6: Final answer
    x = 769.37

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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.