Home / 3,636.80-5,019.08-2,043.60

Finding the Fourth Proportional to 3,636.80, 5,019.08 and 2,043.60

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Solution

The fourth proportional to 3,636.80, 5,019.08 and 2,043.60 is: 2,820.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,636.80 : 5,019.08 = 2,043.60 : x
  2. Step 2: Convert to fraction form
    3,636.80/5,019.08 = 2,043.60/x
  3. Step 3: Cross multiply
    3,636.80x = 5,019.08 × 2,043.60
  4. Step 4: Simplify right side
    3,636.80x = 10,256,991.89
  5. Step 5: Solve for x
    x = 10,256,991.89/3,636.80
  6. Step 6: Final answer
    x = 2,820.33

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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.