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Finding the Fourth Proportional to 8,083.60, 12,121.80 and 3,702.48

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Solution

The fourth proportional to 8,083.60, 12,121.80 and 3,702.48 is: 5,552.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,083.60 : 12,121.80 = 3,702.48 : x
  2. Step 2: Convert to fraction form
    8,083.60/12,121.80 = 3,702.48/x
  3. Step 3: Cross multiply
    8,083.60x = 12,121.80 × 3,702.48
  4. Step 4: Simplify right side
    8,083.60x = 44,880,722.06
  5. Step 5: Solve for x
    x = 44,880,722.06/8,083.60
  6. Step 6: Final answer
    x = 5,552.07

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1.5x scale

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.