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Finding the Fourth Proportional to 7,264.78, 10,902.02 and 2,647.78

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Solution

The fourth proportional to 7,264.78, 10,902.02 and 2,647.78 is: 3,973.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,264.78 : 10,902.02 = 2,647.78 : x
  2. Step 2: Convert to fraction form
    7,264.78/10,902.02 = 2,647.78/x
  3. Step 3: Cross multiply
    7,264.78x = 10,902.02 × 2,647.78
  4. Step 4: Simplify right side
    7,264.78x = 28,866,150.52
  5. Step 5: Solve for x
    x = 28,866,150.52/7,264.78
  6. Step 6: Final answer
    x = 3,973.44

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.