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Finding the Fourth Proportional to 7,420.59, 10,240.43 and 4,063.43

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Solution

The fourth proportional to 7,420.59, 10,240.43 and 4,063.43 is: 5,607.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,420.59 : 10,240.43 = 4,063.43 : x
  2. Step 2: Convert to fraction form
    7,420.59/10,240.43 = 4,063.43/x
  3. Step 3: Cross multiply
    7,420.59x = 10,240.43 × 4,063.43
  4. Step 4: Simplify right side
    7,420.59x = 41,611,270.47
  5. Step 5: Solve for x
    x = 41,611,270.47/7,420.59
  6. Step 6: Final answer
    x = 5,607.54

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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.