Home / 3,630.36-5,446.80-1,900.20

Finding the Fourth Proportional to 3,630.36, 5,446.80 and 1,900.20

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Solution

The fourth proportional to 3,630.36, 5,446.80 and 1,900.20 is: 2,850.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,630.36 : 5,446.80 = 1,900.20 : x
  2. Step 2: Convert to fraction form
    3,630.36/5,446.80 = 1,900.20/x
  3. Step 3: Cross multiply
    3,630.36x = 5,446.80 × 1,900.20
  4. Step 4: Simplify right side
    3,630.36x = 10,350,009.36
  5. Step 5: Solve for x
    x = 10,350,009.36/3,630.36
  6. Step 6: Final answer
    x = 2,850.96

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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.