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Finding the Fourth Proportional to 3,636.63, 5,016.74 and 2,640.33

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Solution

The fourth proportional to 3,636.63, 5,016.74 and 2,640.33 is: 3,642.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,636.63 : 5,016.74 = 2,640.33 : x
  2. Step 2: Convert to fraction form
    3,636.63/5,016.74 = 2,640.33/x
  3. Step 3: Cross multiply
    3,636.63x = 5,016.74 × 2,640.33
  4. Step 4: Simplify right side
    3,636.63x = 13,245,835.92
  5. Step 5: Solve for x
    x = 13,245,835.92/3,636.63
  6. Step 6: Final answer
    x = 3,642.34

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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.