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Finding the Fourth Proportional to 3,743.70, 5,164.47 and 2,418.54

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Solution

The fourth proportional to 3,743.70, 5,164.47 and 2,418.54 is: 3,336.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,743.70 : 5,164.47 = 2,418.54 : x
  2. Step 2: Convert to fraction form
    3,743.70/5,164.47 = 2,418.54/x
  3. Step 3: Cross multiply
    3,743.70x = 5,164.47 × 2,418.54
  4. Step 4: Simplify right side
    3,743.70x = 12,490,477.27
  5. Step 5: Solve for x
    x = 12,490,477.27/3,743.70
  6. Step 6: Final answer
    x = 3,336.40

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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.