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Finding the Fourth Proportional to 7,290.68, 10,936.08 and 5,539.32

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Solution

The fourth proportional to 7,290.68, 10,936.08 and 5,539.32 is: 8,309.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,290.68 : 10,936.08 = 5,539.32 : x
  2. Step 2: Convert to fraction form
    7,290.68/10,936.08 = 5,539.32/x
  3. Step 3: Cross multiply
    7,290.68x = 10,936.08 × 5,539.32
  4. Step 4: Simplify right side
    7,290.68x = 60,578,446.67
  5. Step 5: Solve for x
    x = 60,578,446.67/7,290.68
  6. Step 6: Final answer
    x = 8,309.03

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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.