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Finding the Fourth Proportional to 3,636.81, 5,020.69 and 2,827.47

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Solution

The fourth proportional to 3,636.81, 5,020.69 and 2,827.47 is: 3,903.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,636.81 : 5,020.69 = 2,827.47 : x
  2. Step 2: Convert to fraction form
    3,636.81/5,020.69 = 2,827.47/x
  3. Step 3: Cross multiply
    3,636.81x = 5,020.69 × 2,827.47
  4. Step 4: Simplify right side
    3,636.81x = 14,195,825.25
  5. Step 5: Solve for x
    x = 14,195,825.25/3,636.81
  6. Step 6: Final answer
    x = 3,903.38

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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.