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Finding the Fourth Proportional to 3,480.52, 5,220.60 and 883.48

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Solution

The fourth proportional to 3,480.52, 5,220.60 and 883.48 is: 1,325.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,480.52 : 5,220.60 = 883.48 : x
  2. Step 2: Convert to fraction form
    3,480.52/5,220.60 = 883.48/x
  3. Step 3: Cross multiply
    3,480.52x = 5,220.60 × 883.48
  4. Step 4: Simplify right side
    3,480.52x = 4,612,295.69
  5. Step 5: Solve for x
    x = 4,612,295.69/3,480.52
  6. Step 6: Final answer
    x = 1,325.17

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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.