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Finding the Fourth Proportional to 7,361.20, 10,156.08 and 5,240.62

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Solution

The fourth proportional to 7,361.20, 10,156.08 and 5,240.62 is: 7,230.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,361.20 : 10,156.08 = 5,240.62 : x
  2. Step 2: Convert to fraction form
    7,361.20/10,156.08 = 5,240.62/x
  3. Step 3: Cross multiply
    7,361.20x = 10,156.08 × 5,240.62
  4. Step 4: Simplify right side
    7,361.20x = 53,224,155.97
  5. Step 5: Solve for x
    x = 53,224,155.97/7,361.20
  6. Step 6: Final answer
    x = 7,230.36

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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.