Home / 3,636.60-5,445.18-2,172.12

Finding the Fourth Proportional to 3,636.60, 5,445.18 and 2,172.12

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Solution

The fourth proportional to 3,636.60, 5,445.18 and 2,172.12 is: 3,252.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,636.60 : 5,445.18 = 2,172.12 : x
  2. Step 2: Convert to fraction form
    3,636.60/5,445.18 = 2,172.12/x
  3. Step 3: Cross multiply
    3,636.60x = 5,445.18 × 2,172.12
  4. Step 4: Simplify right side
    3,636.60x = 11,827,584.38
  5. Step 5: Solve for x
    x = 11,827,584.38/3,636.60
  6. Step 6: Final answer
    x = 3,252.37

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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.