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Finding the Fourth Proportional to 2,702.29, 4,053.44 and 754.45

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Solution

The fourth proportional to 2,702.29, 4,053.44 and 754.45 is: 1,131.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,702.29 : 4,053.44 = 754.45 : x
  2. Step 2: Convert to fraction form
    2,702.29/4,053.44 = 754.45/x
  3. Step 3: Cross multiply
    2,702.29x = 4,053.44 × 754.45
  4. Step 4: Simplify right side
    2,702.29x = 3,058,117.81
  5. Step 5: Solve for x
    x = 3,058,117.81/2,702.29
  6. Step 6: Final answer
    x = 1,131.68

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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.