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Finding the Fourth Proportional to 3,613.92, 4,981.26 and 2,418.49

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Solution

The fourth proportional to 3,613.92, 4,981.26 and 2,418.49 is: 3,333.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,613.92 : 4,981.26 = 2,418.49 : x
  2. Step 2: Convert to fraction form
    3,613.92/4,981.26 = 2,418.49/x
  3. Step 3: Cross multiply
    3,613.92x = 4,981.26 × 2,418.49
  4. Step 4: Simplify right side
    3,613.92x = 12,047,142.79
  5. Step 5: Solve for x
    x = 12,047,142.79/3,613.92
  6. Step 6: Final answer
    x = 3,333.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.