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Finding the Fourth Proportional to 7,360, 11,040.95 and 2,679.29

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Solution

The fourth proportional to 7,360, 11,040.95 and 2,679.29 is: 4,019.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,360 : 11,040.95 = 2,679.29 : x
  2. Step 2: Convert to fraction form
    7,360/11,040.95 = 2,679.29/x
  3. Step 3: Cross multiply
    7,360x = 11,040.95 × 2,679.29
  4. Step 4: Simplify right side
    7,360x = 29,581,906.93
  5. Step 5: Solve for x
    x = 29,581,906.93/7,360
  6. Step 6: Final answer
    x = 4,019.28

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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.