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Finding the Fourth Proportional to 3,360.08, 5,041 and 1,280.12

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Solution

The fourth proportional to 3,360.08, 5,041 and 1,280.12 is: 1,920.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,360.08 : 5,041 = 1,280.12 : x
  2. Step 2: Convert to fraction form
    3,360.08/5,041 = 1,280.12/x
  3. Step 3: Cross multiply
    3,360.08x = 5,041 × 1,280.12
  4. Step 4: Simplify right side
    3,360.08x = 6,453,084.92
  5. Step 5: Solve for x
    x = 6,453,084.92/3,360.08
  6. Step 6: Final answer
    x = 1,920.52

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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.