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Finding the Fourth Proportional to 7,242, 10,855.44 and 3,348.96

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Solution

The fourth proportional to 7,242, 10,855.44 and 3,348.96 is: 5,019.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,242 : 10,855.44 = 3,348.96 : x
  2. Step 2: Convert to fraction form
    7,242/10,855.44 = 3,348.96/x
  3. Step 3: Cross multiply
    7,242x = 10,855.44 × 3,348.96
  4. Step 4: Simplify right side
    7,242x = 36,354,434.34
  5. Step 5: Solve for x
    x = 36,354,434.34/7,242
  6. Step 6: Final answer
    x = 5,019.94

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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.