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Finding the Fourth Proportional to 7,755.07, 10,702.02 and 4,218.22

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Solution

The fourth proportional to 7,755.07, 10,702.02 and 4,218.22 is: 5,821.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,755.07 : 10,702.02 = 4,218.22 : x
  2. Step 2: Convert to fraction form
    7,755.07/10,702.02 = 4,218.22/x
  3. Step 3: Cross multiply
    7,755.07x = 10,702.02 × 4,218.22
  4. Step 4: Simplify right side
    7,755.07x = 45,143,474.80
  5. Step 5: Solve for x
    x = 45,143,474.80/7,755.07
  6. Step 6: Final answer
    x = 5,821.16

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