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Finding the Fourth Proportional to 1,033.75, 1,425.90 and 754.84

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Solution

The fourth proportional to 1,033.75, 1,425.90 and 754.84 is: 1,041.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,033.75 : 1,425.90 = 754.84 : x
  2. Step 2: Convert to fraction form
    1,033.75/1,425.90 = 754.84/x
  3. Step 3: Cross multiply
    1,033.75x = 1,425.90 × 754.84
  4. Step 4: Simplify right side
    1,033.75x = 1,076,326.36
  5. Step 5: Solve for x
    x = 1,076,326.36/1,033.75
  6. Step 6: Final answer
    x = 1,041.19

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.