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Finding the Fourth Proportional to 2,702.99, 4,054.64 and 755.18

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Solution

The fourth proportional to 2,702.99, 4,054.64 and 755.18 is: 1,132.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,702.99 : 4,054.64 = 755.18 : x
  2. Step 2: Convert to fraction form
    2,702.99/4,054.64 = 755.18/x
  3. Step 3: Cross multiply
    2,702.99x = 4,054.64 × 755.18
  4. Step 4: Simplify right side
    2,702.99x = 3,061,989.40
  5. Step 5: Solve for x
    x = 3,061,989.40/2,702.99
  6. Step 6: Final answer
    x = 1,132.82

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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.